zany(adj) :amusingly foolish; crown-like.

zap(n) :<apprec>energy; drive; vigor; liveliness.

zero(n) :<slang>sb or sthg considered to be worthless; failure.

zillion, also zillions(n) :[of]a very large and indefinite number.

zing(n) :vigor; liveliness; vitality; zest.

zip(n) :<apprec>energy; vim; liveliness.

zippy(adj) :<apprec>vigorous; lively and energetic; brisk.

zit(n) :a small round swelling on the skin; pimple.

zizz(n) :a short sleep. _He had a --- during the lesson in the classroom.

zombie(n) :a dull and uninterested person.

zonked(adj) :[out]<slang>1-influenced by drugs or alcohol. 2-very tired; weary.

zoom(v) :1-to increase or go up suddenly and fast. _The taxes --- after the government got into a recession. 2-to move at a high speed and esp. noisily. _I hate zooming drivers.