opera hat
— Noun
– English
~ a man's hat with a tall crown; usually covered with silk or with beaver fur
opera hood
— Noun
– English
~ a large cloak worn over evening clothes
opera
— Noun
– English
~ a building where musical dramas are performed
opera
— Noun
– English
~ a drama set to music; consists of singing with orchestral accompaniment and an orchestral overture and interludes
operable
— Adjective
– English
~ fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order"
operable
— Adjective
– English
~ capable of being treated by surgical operation; "an operable cancer"
operable
— Adjective
– English
~ usable for a specific purpose; "an operable plan"; "a practicable solution"
operagoer
— Noun
– English
~ a patron of the opera
operand
— Noun
– English
~ a quantity upon which a mathematical operation is performed
operant conditioning
— Noun
– English
~ conditioning in which an operant response is brought under stimulus control by virtue of presenting reinforcement contingent upon the occurrence of the operant response
operant
— Adjective
– English
~ having influence or producing an effect; "many emotional determinants at work"; "an operant conscience"
operate on
— Verb
– English
~ perform surgery on; "The doctors operated on the patient but failed to save his life"
operate
— Verb
– English
~ handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever"
operate
— Verb
– English
~ direct or control; projects, businesses, etc.; "She is running a relief operation in the Sudan"
operate
— Verb
– English
~ perform surgery on; "The doctors operated on the patient but failed to save his life"