Topper
Part of speech: noun
Definition: Something that is on top. A top hat. Something for removing the top of something. Something that exceeds those previous in a series, as a joke or prank. A single-handed dinghy, 11 foot (3.6 metres) in length, with only one sail.
Best
Part of speech: adjective
Definition: Most; largest.
Part of speech: adverb
Definition: (manner) Accurately, competently, satisfactorily.
Part of speech: verb
Definition: To beat in a contest.
Part of speech: noun
Definition: The supreme effort one can makeThe person (or persons) who is (are) most excellent.
Example sentence: A problem is a chance for you to do your best.