Something highly enjoyable; a great pleasure, delight, or gratification. Also rarely applied to a person as an emotional expression of…

A nice person or thing; a treat.

transferred and figurative. Something good or sweet, esp. with allusion to the use of sweets to hide the disagreeable taste of medicine, or the like…

a fair treat (in predicative use) a person or thing considered to be highly pleasing or commendable; (as adverbial phrase) very well. Cf. treat, n.1…

colloquial (originally U.S.). Something very pleasant or pleasurable to deal with; something to be eagerly appropriated; a prize, a treat. Obsolete.