UK vs ticktack

UK and ticktack both are nouns.

Word	Noun	Adjective	Verb	Adverb
UK	Yes	No	No	No
ticktack	Yes	No	Yes	No

UK (noun)	ticktack (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	system of signalling by hand signs used by bookmakers at racetracks

UK (verb)	ticktack (verb)
	make a sound like a clock or a timer