diacritic /dī-ə-kritˈik/ or diacritical /-əl/

Distinguishing, a term used of marks (eg accents, cedillas, etc) attached to letters to indicate modified sound, value, etc

• twelve-note
• twelve-note row
• twelve-penny
• twelves
• twelve score
• twelve scores
• twelve-step
• Twelve Tables
• twelve-tone
• twelve-tone row
• twenties
• twentieth
• twentieths
• twenty
• twenty-five
• twenty-fives
• twentyfold
• twentyfolds
• twenty-four
• twenty-four-hour
• twenty-four-hour clock
• twenty-fourmo
• twenty-fours
• twenty-four-seven
• twenty-four-seven usu written 24–7