11-letter words containing b, a, c, k, h
- harken back — hearken back (see phrase under hearken)
- hash bucket — hash coding
- heart block — a defect in the electrical impulses of the heart resulting in any of various arrhythmias or irregularities in the heartbeat.
- hollow back — a paper tube or roll, almost flattened, having one side glued to the back of a book and the other to the inside of the spine.
- hollow-back — a paper tube or roll, almost flattened, having one side glued to the back of a book and the other to the inside of the spine.
- hunchbacked — humpbacked.
- leatherback — a sea turtle, Dermochelys coriacea, having the shell embedded in a leathery skin, reaching a length of more than 7 feet (2.1 meter) and a weight of more than 1000 pounds (450 kg): the largest living sea turtle; an endangered species.
- lobachevski — Nikoˈlai Iˈvanovich (nikɔˈlaɪ iˈvɑnɔvɪtʃ ) ; nēk^ōlīˈ ēväˈn^ōvich) 1793-1856; Russ. mathematician
- lobachevsky — Nikolai Ivanovich [nyi-kuh-lahy ee-vah-nuh-vyich] /nyɪ kʌˈlaɪ iˈvɑ nə vyɪtʃ/ (Show IPA), 1793–1856, Russian mathematician.
- lunch break — pause for midday meal
- march break — a school holiday, usually for a week, during March
- pickelhaube — a spiked German helmet from the 19th and 20th centuries
- pitch-black — extremely black or dark as pitch: a pitch-black night.
- plough back — an agricultural implement used for cutting, lifting, turning over, and partly pulverizing soil.
- scratchback — an implement for scratching the back
- shacklebone — the wrist
- shcherbakov — a former name (1946–57) of Andropov.
- swashbuckle — to work, behave, or perform as a swashbuckler.
- uncheckable — not able to be restrained
- unshockable — not able to be shocked
- welsh black — a breed of black cattle originally from N Wales that are bred for both meat and milk