From WordNet (r) 2.0 (August 2003) [wn]:
synchronize
v 1: make synchronous and adjust in time or manner; "Let's
synchronize our efforts" [syn: synchronise, sync]
[ant: desynchronize]
2: happen at the same time [syn: synchronise, contemporize,
contemporise]
3: make (motion picture sound) exactly simultaneous with the
action; "synchronize this film" [syn: synchronise]
4: arrange or represent events so that they co-occur;
"synchronize biblical events" [syn: synchronise,
contemporize, contemporise]
5: operate simultaneously; "The clocks synchronize" [syn:
synchronise]
6: cause to indicate the same time or rate; "synchronize your
watches" [syn: synchronise]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Synchronize \Syn"chro*nize\, v. t.
1. To assign to the same date or period of time; as, to
synchronize two events of Greek and Roman history.
"Josephus synchronizes Nisan with the Egyptian Pharmus."
--W. L. Bevan.
[1913 Webster]
2. To cause to agree in time; as, to synchronize the
movements of different machines; to synchronize clocks.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Synchronize \Syn"chro*nize\, v. i. [imp. & p. p. Synchronized;
p. pr. & vb. n. Synchronizing.] [Gr. ?.]
To agree in time; to be simultaneous.
[1913 Webster]
The path of this great empire, through its arch of
progress, synchronized with that of Christianity. --De
Quincey.
[1913 Webster]