h2
+ hydrogen, H
+ dropped the habit
- to develop bad habits
- to hack, to hack, to hack
- 001, Hacker
+ Japanese three-line poem of seventeen syllables, Haiku
+ camel hair
- matted hair
+ to comb my hair
+ to change the color of my hair
+ to part my hair
- to tear my hair
+ pubic hair
+ cross hairs
- split hairs
+ paid time and a half
+ half and half
- half-brother
- half-sister
+ half-sole
+ city hall
+ music hall
+ pool hall
+ in the hall
+ town hall
- October 31, Halloween
- Celts and Halloween
+ came to a halt
+ a beef patty, hamburger
+ Hamburg and hamburger
+ to hit it with a hammer
+ claw hammer
+ tack hammer
+ to come under the hammer
+ to give him a hand
+ to lend a hand
+ at hand
+ by hand
+ at first hand
+ free hand
+ asked for her hand
+ to read her hand
+ hour hand
+ in hand
+ hand in hand
+ minute hand
+ to hold my hand
+ to have written your name on the palm of my hand
+ to try my hand
- out of hand
+ sleight of hand
+ old hand
+ on hand
+ on the other hand
+ left hand and right hand
- at second hand
+ the heel of the hand
+ to hand
+ the upper hand
+ gained the upper hand
+ to hold your hand
+ a nice line of handbags
+ handbra
+ handcuffs
+/- with my bare hands
+ to change hands
+ in good hands
+ to hold hands
+ to join hands
+ to link hands
+ cupped my hands
+ with my chin cupped in my hands
+ on my hands
- out of my hands
+ to wash my hands
+ show of hands
- to take the law into my own hands
+ to shake hands
+ handshake
+ 500s BC, Greece and handshake
+ golden handshake
+ a small piece of torn skin next to cuticle, hangnail
+ a tale of stupidity, Clever Hans
+ 1812, Brothers Grimm and Clever Hans
+ never dreamed it would happen
+ if nothing untoward happens
+ to let us know what happens
+ inward happiness
+ to feel happy
+ made me happy
+ really happy
- is raining hard
- to drive myself too hard
+ worked hard
- in times of hardship
- a congenital defect, hare-lip
+ mouth organ, a harmonica
+ early 1900s, Messner and the harmonica
+ in harness
- out of harness
+ a musical instrument, harpsichord
+ 1600-1800, Western Europe and harpsichords
- a lean harvest
+ a rich harvest
+ combine harvester
+ 1835, H. Moore and the combine harvester
- in haste
+ to make haste
+ hard hat
+ shook snow off my hat
+ rain hat
+ sailor hat
+ sun hat
+ to pass the hat
+ a woolly hat
+ to keep it under your hat
+ a salmon hatchery
+ a trout hatchery
+ to bury the hatchet
- I hate
+ made a good haul
+ over the long haul
+ I have
+/- haves and have-nots
+ to cry havoc
- wreaked havoc
+ for cattle, hay
+ grass, clover, etc. mown and dried for fodder; hay
- needle in a haystack
- choking hazard
- occupational hazard
- trip hazard
+ witch hazel
+ used for detergent bottles, milk jugs and molded plastic cases; HDPE
+ high-density polyethylene, HDPE
+ high definition television, HDTV
+ 1996, digital TV, HDTV
+ won by a head
- to cut off his head
+ a price on his head
+ in my head
+ to take it into my head
+ to keep my head
- to lose my head
+ to have a roof over my head
- to shake my head
+ at the head
+ to hit the nail on the head
- thick head
+ to use your head
+ faith healer
+ faith healing
+ to enjoy good health
+ the secret of good health
+ to be blessed with good health
+ drank his health
- ill health
+ on the plea of ill health
- impair my health
- succeeded but at the expense of my health
+ was restored to health
- scrap heap
+ to correspond with what I have heard
- hard of hearing
+ at heart
- sick at heart
+ by heart
+ to learn it by heart
+ dear heart
- with a heavy heart
+ with a light heart
- lonely heart
- to lose heart
+ with all my heart
+ to bless my heart!
+ knew it in my heart
+ from the bottom of my heart
+ to strain my heart
- change of heart
+ after my own heart
+ to take heart
+ a tender heart
- to take to heart
+ to have a warm heart
+ spoke heart-to-heart
+ to be in heat
+ intense heat
- an itchy skin inflammation, prickly heat
+ radiant heat
+ steam heat
+ immersion heater
+ solar heating
+ an arched covering of heaven, the vault of heaven
+ Seventh Heaven
- a highway to heaven
+ a stairway to heaven
+ Jacob and the stairway to heaven
- Good heavens!
+ the heavens
+ the language of religion, Hebrew
+ 22 alphabet in Hebrew
+ to take heed
- to drag my heels
- down at the heels
+ a man of average height
- am afraid of heights
+ helicopter
+ 1940, Sikorsky and the helicopter
+ a sun-centered universe, heliocentrism
+ 1543, Copernicus and heliocentrism
+ double helix
+ 1953, Watson, Crick, M. Wilkins, and the double helix
+ at the helm
+ crash helmet
- too proud to ask for help
- repelled all offers of help
+ reciprocal help
+ an emergency cry; to help, to help, to help
+ had a moral obligation to help
+ managed without help
+ plumber's helper
+ the Eastern Hemisphere
+ the Northern Hemisphere
+ the Southern Hemisphere
+ the Western Hemisphere
+ to control the right side of the body, left cerebral hemisphere
+ to control the left side of the body, right cerebral hemisphere
+ the left and the right; cerebral hemispheres
- poison hemlock
- roosters and hen
+ rooster and hens
+ up to us to help her
+ to think highly of her
+ had news of her
- laid the blame on her
+ took pity on her
+ to take it to her
- lost touch with her
+ to come here!
+ is only a short haul from here
+ a ten-minute walk from here
- to look here!
+ to sign here
+ to stay here
+ to line up here
+ the hereafter
+ chromosomes and heredity
- lived like a hermit
- irreducible hernia
+ 2017, Hutchins, the WannaCry hero
- unsung heroes
- to prostitute herself
- six-fingers, hexadactyly
- raw hides
+ a defense, hiding
+ a graphic language, Egyptian hieroglyphics
+ a phonetic and semantic language, Egyptian hieroglyphics
+ the origin of the language, Egyptian hieroglyphics
+ pitched their hopes high
+ Mr. High
+ reached a new high
+ on high
+ the Highlands
+ Her Highness
+ His Highness
+ Her Serene Highness
+ His Serene Highness
+ Your Serene Highness
+ Your Highness
+ interstate highway
+ on the highway
+ to dig through the hill
+ drove a tunnel through the hill
+ rolling hills
+ to the hilt
+ said fine things about him
+ to run after him
- discriminated against him
- felt that the world was against him
+ to walk behind him
- had a sneaking affection for him
+ no match for him
- disappointed in him
- to have a low opinion of him
+ was glad to be rid of him
- to look down on him
- to try to force my ideas on him
+ if you should happen to see him
+ to hand it to him
+ to make it up to him
- quite unlike him
+ have no quarrel with him
+ had a talk with him
- lost my temper with him
+ washed himself
+ stag(red deer) and hind
+ a passenger airship, Hindenburg
- 1937, destroyed by fire, Hindenburg
+ Germany and the Hindenburg
+ the language of clotheslines, Hindi
+ went ahead without hindrance
- broken hip
+ a seahorse-shaped structure in the center of the brain, hippocampus
+ located in the medial temporal lobe of the brain, hippocampus
+ a storage site for short-term and long-term memories, hippocampus
+ a site for spatial navigation, hippocampus
+ 1957, Scoville, Milner, and the hippocampus
+ the serpent hisses
+ to make history
+ natural history
+ a piece of history
+ oral history
+ to make a hit
- 1889-1945, a dictator, Hitler
- Human Immunodeficiency Virus Infection, HIV
- early 1900s, West-central Africa and HIV
+ 1983, Montagnier, Barre-Sinoussi, and HIV
+ the laughter of Santa Claus; ho, ho, ho
+ pursuing her hobby
+ a sport, hockey
+ 2000 BC, Egyptians and hockey
+ air hockey
+ 1972, Crossman, Kendrick, Lemieux and air hockey
+ field hockey
+ ice hockey
+ street hockey
+ a game for two players, table hockey
+ 1932, Munro and table hockey
+ pot holder
+ fishing hole
- caused by the use of CFC, ozone hole
- Antarctic ozone hole
+ 1987, Montreal Protocol and the Antarctic ozone hole
+ 1985, Farman, Gardiner, Shanklin, and the Antarctic ozone hole
- square peg in a round hole
+ water hole
- the collapsed objects so massive that light could not escape, black holes
+ 1783, J. Mitchell and black holes
+ bank holiday
+ legal holiday
+ national holiday
+ on holiday
+ public holiday
+ holy of holies
+ His Holiness
+ a fictional detective, Sherlock Holmes
+ 1887, Doyle and Sherlock Holmes
- murder by the Nazis of over six million Jews, the Holocaust
- 1941-1945, Hitler and the Holocaust
+ a 3D image, hologram
+ 1947, Gabor and the hologram
+ North Holland, Friesland, and Holstein
+ at home
- broken home
+ to set out for home
+ foster home
+ home away from home
+ funeral home
+ to go home
+ halfway home
+ mobile home
+ motor home
+ my country, my home
+ nursing home
+ an old people's home
+ solar home
+ to stay home
+ went straight home
+ convinced that he is honest
+ a reputation for honesty
+ bee and honey
+ milk and honey
- no bees, no honey
- no money, no honey
+ Her Honor
+ His Honor
+ guard of honor
+ guest of honor
+ the principal bridesmaid, maid of honor
+ Medal of Honor
+ roll of honor
- unworthy of this honor
+ Your Honor
+ cloven hoof
+ on the hoof
+ fishing hook
+ a toy hoop, hula hoop
+ 1957, Knerr, Melin, and the hula hoop
+ the owl hoots(sound)
- to abandon hope
- hoping against hope
- a faint hope
- forlorn hope
+ our last hope
+ a gleam of hope
+ a ray of hope
+ kindled our hopes
- the death of our hopes
- shattered our hopes
+ the robin hops
+ the wren hops
+ a children's game, hopscotch
+ on the horizon
+ a chemical messenger, hormone
+ 1902, Bayliss, Starling, and hormone
+ a defense, horn
+ ram and horns
- to pull a horse
+ showing dished profile, arched neck, level croup, and high-carried tail; Arabian horse
+ black horse
+ dark horse
+ a toy horse, hobby horse
+ pale horse
+ red horse
+ rocking horse
+ saddle horse
+ a tale of the city of Troy, Trojan Horse
+ 63 BC-AD 14, Greeks and Trojan Horse
- a malicious computer program, computer Trojan horse
+ war horse
+ white horse
+ on horseback
+ to feed oats to horses
+ hospice
+ 1967, Saunders and hospice
+ general hospital
+ Vienna General Hospital
+ 1784, J. Frank and The Vienna General Hospital
+ mental hospital
+ MASH, Mobile Army Surgical Hospital
+ teaching hospital
+ discharged from the hospital
+ youth hostel
- extreme hot
+ to strike while the iron is hot
+ served hot
+ a fashionable hotel
+ ice hotel
+ 60 minutes in an hour
+ inside an hour
+ shall finish within an hour
+ credit hour
+ at the eleventh hour
- waited a full hour
+ half hour
- a late hour
+ the lunch hour
- off hour
+ back in one hour
- rush hour
+ always come at the same hour
- midnight, witching hour
+ zero hour
+ hourglass
+ 1338, Lorenzetti and the hourglass
- after hours
+ till all hours
- to work long hours
+ nine to five, office hours
+ peak hours
+ to talk away the hours
+ in his waking hours
- after midnight, the wee hours
+ working hours
- condemned house
+ a full house
+ a nearby house
+ open house
+ a performing arts center, Sydney Opera House
+ Australia and the Sydney Opera House
+ 1973, Utzon and the Sydney Opera House
+ the opera house
+ play house
+ ranch house
+ rooming house
+ row house
+ the House
+ man of the house
+ on the house
- signed away her right to the house
+ treasure house
+ tree house
+ two-story house
+ to set up house
+ a desirable waterfront house
+ the official residence and workplace of the President of the US, the White House
+ 1800, Washington DC and the White House
+ an air-cushion vehicle, hovercraft
+ 1959, Cockerell and the hovercraft
+ the wolf howls
+ HyperText Markup Language, HTML
+ 1990, Berners-Lee and the HTML
+ HyperText Transfer Protocol, HTTP
+ 1997, IETF, W3C, and the HTTP
+ HyperText Transfer Protocol Secure, HTTPS
+ 1994, Netscape Communications and the HTTPS
+ 220 stem cells in a human
+ about 50 hormones in a human
+ 340 joints in a human
+ about 640 skeletal muscles in a human
+ 9 essential proteinogenic amino acids for humans
+ 1935 Rose and the 9 essential proteinogenic amino acids for humans
+ relative humidity
- dry humor
+ good humor
+ sense of humor
+ vitreous humor
+ the bee hums
+ a game, egg hunt
+ treasure hunt
- fortune hunter
+ high hurdles
- last hurrah
- badly hurt
- was more frightened than hurt
- to swap my husband with her husband
+ 2017, the WannaCry hero, Hutchins
- in a hurry
+ a novella of a person having a dual personality, Jekyll and Hyde
+ 1886, Stevenson and the Jekyll and Hyde
+ a boat that lifts above the surface of water after gaining speed, hydrofoil
+ 1898, Forlanini and the hydrofoil
+ H, hydrogen
+ 1766, Cavendish and hydrogen
+ an underwater microphone, hydrophone
+ 1929, Fessenden and the hydrophone
+ hydrotherapy
+ 1702, Floyer and hydrotherapy
- spotted hyena
+ dental hygiene
+ a reference to data, hyperlink
- a congenital defect, imperforate hymen
+ an art of inducing a trance by suggestions, hypnosis
+ 1933, C. L. Hull and hypnosis
+ to maintain the body's internal balance, hypothalamus
+ located below the thalamus in the brain, hypothalamus
+ the pleasure center of the brain, hypothalamus
- the conversion of psychological distress into ticks and fits, hysteria
+ 1886, S. Freud and hysteria
- mass hysteria