adverb

Etymology: orig. punning use of L tandem, at length, finally < tam, so much (< IE *tam, acc. sing. fem. of pron. < base *to- > the) + -dem, demonstrative particle

noun

1. a two-wheeled carriage drawn by horses harnessed tandem
2. a team, as of horses, harnessed tandem
3. a bicycle with two seats and sets of pedals placed tandem
4. a relationship between two persons or things involving cooperative action, mutual dependence, etc. to work in tandem

adjective