A breaking, harshly dissonant vocal tone or sound, as in hoarseness.
from The American Heritage Dictionary of the English Language, 4th Edition
A mental or physical impairment; a defect.
from The American Heritage Dictionary of the English Language, 4th Edition
A moment; an instant: at the crack of dawn.
from The American Heritage Dictionary of the English Language, 4th Edition
A partial split or break; a fissure.
from The American Heritage Dictionary of the English Language, 4th Edition
A sharp resounding blow.
from The American Heritage Dictionary of the English Language, 4th Edition
verb-transitive
Informal To break open or into: crack a safe.
from The American Heritage Dictionary of the English Language, 4th Edition
Informal To break through (an obstacle) in order to win acceptance or acknowledgement: finally cracked the "men-only” rule at the club.
from The American Heritage Dictionary of the English Language, 4th Edition
Informal To open up for use or consumption: crack a book; cracked a beer.
from The American Heritage Dictionary of the English Language, 4th Edition
Informal To tell (a joke), especially on impulse or in an effective manner.
from The American Heritage Dictionary of the English Language, 4th Edition
To break with a sharp snapping sound. See Synonyms at break.
from The American Heritage Dictionary of the English Language, 4th Edition
verb
To make a very sharp explosive sound .
from Free Scrabble Dictionary
To break, split, or snap apart.
from Free Scrabble Dictionary
as.
from Free Scrabble Dictionary
To lose control or effectiveness under pressure .
from Free Scrabble Dictionary
To fail in tone .
from Free Scrabble Dictionary
verb-intransitive
Chemistry To break into simpler molecules by means of heat.
from The American Heritage Dictionary of the English Language, 4th Edition
To break or snap apart.
from The American Heritage Dictionary of the English Language, 4th Edition
To break without complete separation of parts; fissure: The mirror cracked.
from The American Heritage Dictionary of the English Language, 4th Edition
To change sharply in pitch or timbre, as from hoarseness or emotion. Used of the voice.
from The American Heritage Dictionary of the English Language, 4th Edition
To have a mental or physical breakdown: cracked under the pressure.
from The American Heritage Dictionary of the English Language, 4th Edition
phrasal-verb
Crack down To act more forcefully to regulate, repress, or restrain: The police cracked down on speeding.
from The American Heritage Dictionary of the English Language, 4th Edition
Crack up Informal To experience or cause to experience a great deal of amusement: really cracked up when I heard that joke.
from The American Heritage Dictionary of the English Language, 4th Edition
Crack up Informal To have a mental or physical breakdown: crack up from overwork.
from The American Heritage Dictionary of the English Language, 4th Edition
Crack up Informal To praise highly: He was simply not the genius he was cracked up to be.
from The American Heritage Dictionary of the English Language, 4th Edition
Crack up To damage or wreck (a vehicle or vessel): crack up a plane; crack up a boat.
from The American Heritage Dictionary of the English Language, 4th Edition
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