con|tem|plate [ˈkɔntəmpleıt US ˈka:n-] v
[Date: 1500-1600; : Latin; Origin: , past participle of contemplari, from com- ( COM-) + templum ( TEMPLE)]
1.) [T]
to think about something that you might do in the future
He had even contemplated suicide.
contemplate doing sth
Did you ever contemplate resigning?
2.) [T]
to accept the possibility that something is true
too dreadful/horrifying etc to contemplate
The thought that she might be dead was too terrible to contemplate.
3.) [I and T]
to think about something seriously for a period of time
Jack went on vacation to contemplate his future.
contemplate what/whether/how etc
She sat down and contemplated what she had done.
contemplate your navel
(=think so much about your own life that you do not notice other important things - used humorously)
4.) [T]
to look at someone or something for a period of time in a way that shows you are thinking
He contemplated her with a faint smile.

Dictionary of contemporary English. 2013.