present participle of top oneself

present participle of top the charts

present participle of top one's boom

present participle of top from the bottom

(military, government) Information classified at one of the highest levels of sensitivity by a government, based on an assessment that it would cause exceptionally grave damage to national security if disclosed.

A secret that is classed as "top secret"; a top-secret secret; top-secret information. / Used other than figuratively or idiomatically: see top, secret.

An item of casual clothing: a top with no sleeves. / The top of a ship's bilge tank, usually the lowest horizontal surface on board.

(cricket) The edge of a bat farthest from the ground. / (cricket) A deflection of a ball off of the top edge of a bat, into the air and potentially for a catch.

(cricket) To hit the ball with the top edge of the bat.

(US, idiomatic) Best, or high quality. / (Britain, idiomatic) Describing books, magazines, or movies that have adult content or softcore pornography.