tri-

The number one million million (10¹²)

A three-sided polygon; a triangular percussion instrument

Three times as much; to multiply by three

Of little importance or value; insignificant

A three-legged stand for supporting equipment

A set of three related literary, film, or dramatic works

Minor, unimportant facts or details

A three-wheeled pedal vehicle

A group of three; the Christian Holy Trinity

A three-pronged spear associated with the sea god