(adjectival) In an exhaustive and pervasive manner. / (adverbial) In the manner of conducting a remedy, search, or investigation (etc.) that is thorough and complete.

(UK) A double-deck bus with an open, or partially open, top deck.

plural of open-top bus

plural of anti-top quark

A device that converts an incoming signal into a format displayable by a television.

Of vocal sounds: very loudly; as loudly as possible.

plural of top-level domain

(simile) Synonym of sleep like a log

The optimistic outlook of one who has recently achieved success.

simple past tense of run like a top