12-Letter Words Containing: E,N,N,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

• tranquilizer and antidepressant (trade name Triavil) sometimes used as an antiemetic for adults

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

• not many times

• holding first place in a contest

• become fused

• unite (beliefs or conflicting principles)