drawing vs tombola

drawing and tombola both are nouns.

Word	Noun	Adjective	Verb	Adverb
drawing	Yes	No	No	No
tombola	Yes	No	No	No

As nouns, tombola is a hyponym of drawing; that is, tombola is a word with a more specific, narrower meaning than drawing:

drawing: players buy (or are given) chances and prizes are distributed by casting lots
tombola: a lottery in which tickets are drawn from a revolving drum

Other hyponyms of drawing include lucky dip, numbers, numbers game, numbers pool, numbers racket, raffle, sweepstakes.

drawing (noun)	tombola (noun)
the creation of artistic pictures or diagrams	a lottery in which tickets are drawn from a revolving drum
act of getting or draining something such as electricity or a liquid from a source
players buy (or are given) chances and prizes are distributed by casting lots
the act of moving a load by drawing or pulling
a representation of forms or objects on a surface by means of lines
an illustration that is drawn by hand and published in a book, magazine, or newspaper