Source : WordNet®

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}, {suss out}, {check over}, {go
          over}, {check into}]
     2: announce one's departure from a hotel [ant: {check in}]
     3: be verified or confirmed; pass inspection; "These stories
        don't check!" [syn: {check}]
     4: trace; "We are running down a few tips" [syn: {run down}]
     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}]
     7: try to learn someone's opinions and intentions; "I have to
        sound out the new professor" [syn: {sound out}, {feel out}]