From The Collaborative International Dictionary of English v.0.48 [gcide]:
check out \check` out"\ v. i.
1. To vacate a room at a hotel, notel, etc. Converse of
check in.
[PJC]
2. To die. [Colloq.]
[PJC]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
check out \check" out\ v. t.
1. To inspect or examine. [Colloq.]
[PJC]
2. To make a record of having borrowed (something) for
temporary use; as, to check out a book at the library; to
check out equipment from a depository.
[PJC]
3. To bring (items to be purchased) to a checkout counter
(as at a supermarket or other retail store) where the
prices may be totaled and the bill may be paid.
[PJC]
From WordNet (r) 3.0 (2006) [wn]:
check out
v 1: examine so as to determine accuracy, quality, or condition;
"check the brakes"; "Check out the engine" [syn: check,
check up on, look into, check out, suss out, {check
over}, go over, check into]
2: announce one's departure from a hotel [ant: check in, {sign
in}]
3: be verified or confirmed; pass inspection; "These stories
don't check!" [syn: check, check out]
4: trace; "We are running down a few tips" [syn: run down,
check out]
5: record, add up, and receive payment for items purchased; "She
was checking out the apples that the customer had put on the
conveyer belt"
6: withdraw money by writing a check [syn: cheque, {check
out}]
7: try to learn someone's opinions and intentions; "I have to
sound out the new professor" [syn: check out, sound out,
feel out]