thanks

Concise Oxford English Dictionary © 2008 Oxford University Press:
thanks/θaŋks/

▶plural noun an expression of gratitude.

■ another way of saying thank you.

– phrases
no thanks to despite the unhelpfulness of.

thanks a million informal, chiefly ironic thank you very much.
thanks to due to.

– origin OE thancas, pl. of thanc ‘(kindly) thought, gratitude’, of Gmc origin; rel. to think.