12-Letter Words Containing: O,N,N,I,E,R

• operating in unison

• Cholecystokinin

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• make synchronous and adjust in time or manner

• happen at the same time

• make (motion picture sound) exactly simultaneous with the action

• arrange or represent events so that they co-occur

• operate simultaneously

• cause to indicate the same time or rate

• The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.

• (law) a security entered into before a court with a condition to perform some act required by law; on failure to perform that act a sum is forfeited

• give concerts; perform in concerts

• make something concrete

• become specific

• not recognized

• not having a secure reputation