(idiomatic) To avoid revealing one's thoughts, circumstances, or plans.

Alternative form of close only counts in horseshoes

Third-person singular simple present indicative form of keep one's cards close to one's chest

simple past tense and past participle of keep one's cards close to one's chest

present participle of keep one's cards close to one's chest

(idiomatic) To attempt to prevent a problem that has already occurred.

One should be on one's toes and alert of one's surroundings if malicious people are around, to ensure that they cannot wreak havoc in one's life.

superlative form of close: most close.

(archaic) second-person singular simple present form of close

(nautical, navigation) An estimated point in which the distance between two objects, of which at least one is in motion, will reach its minimum value; abbreviated CPA. The estimate is used to evaluate the risk of a collision of e.g. two ships.