wager vs daily double

wager and daily double both are nouns.

Word	Noun	Adjective	Verb	Adverb
wager	Yes	No	Yes	No
daily double	Yes	No	No	No

As nouns, daily double is a hyponym of wager; that is, daily double is a word with a more specific, narrower meaning than wager:

Other hyponyms of wager include exacta, perfecta, parimutuel, parlay, place bet, superfecta, handicap bet.

wager (noun)	daily double (noun)
the act of gambling	a single bet on two horse races in the same day
the money risked on a gamble

wager (verb)	daily double (verb)
maintain with or as if with a bet
stake on the outcome of an issue