Alternative spelling of smart aleck

(idiomatic) One who is particularly flippant or insolent or tends to make snide remarks or jokes.

(of a style of dress) informal yet smart enough for a particular situation

such a style

A plastic card that has information stored on an embedded computer chip.

Alternative spelling of smartdust

(military, historical) Alternative form of smart money

Having practical rather than theoretical knowledge, like that learned on the streets rather than in the classroom.

Alternative spelling of smart ass

(US, colloquial) A substantial quantity of something.