quadrivalent/kwodriʹvaylənt/ adj

• two-dimensional
• two-edged
• two-faced
• two-fisted
• two-handed
• two-hander
• two-horse
• twoness
• twopence
• twopenn'orth
• twopenny
• twopenny-halfpenny
• two-phase
• two-piece
• two-ply
• twosome
• two-step
• two-stroke
• two-time
• two-tone
• two-toned
• two-up
• two-up two-down
• two-way
• two-way mirror