hornet's nest

hornets' nest

hors d'oeuvre

horse's foot

hottentot's bread

hottentot's bread vine

hottentot's fig

hound's-tongue

hound's-tooth check

housemaid's knee

how-d'ye-do

hubble's constant

hubble's law

hubble's parameter

humming bird's trumpet

hundred years' war

hunter's chicken

hunter's sauce

huntington's chorea

huntington's disease

huntsman's cup

huntsman's cups

huntsman's horn

huntsman's horns

hurler's disease

hurler's syndrome

huygens' principle of superposition

in a pig's eye

in everyone's thoughts

infant's-breath

informer's privilege

innocents' day

in one's birthday suit

in one's own right

in someone's way

ironmonger's shop

jack-o'-lantern

jacob's ladder

jacob's rod

jacob's staff

jacquemier's sign

jeanne d'arc

jed'dah

jefferson davis' birthday

jeffrey's pine

jehovah's witness

jehovah's witnesses

jesuit's bark

jesuits' nut

jeu d'esprit

jeweler's glass

jeweler's loupe

jew's-ear

jew's-ears

jew's harp

jews' harp

job's comforter

job's tears

john henry o'hara

john's cabbage

jones' penstemon

joseph's coat

journalist's privilege

judge's robe

jupiter's beard

kallman's syndrome

kangaroo's-foot

kangaroo's paw

kaposi's sarcoma

kaposi's varicelliform eruption

kate o'flaherty chopin

keep one's distance

keep one's eyes off

keep one's eyes open

keep one's eyes peeled

keep one's eyes skinned

keep one's hands off

keep one's mouth shut