1. (used informally) very small
   - bitty [N. Amer], bittie, teensy, teentsy, teeny, wee, weeny, teensy-weensy, teeny-weeny, itty-bitty, itsy-bitsy, titchy [Brit]

See also: little, small

• adaption
• adaptive
• adaptive radiation
• adaptor
• Adar
• Adar Sheni
• adaxial
• adaxially
• add
• add on
• add to
• add together
• add up
• add-in
• addable
• addax
• Addax nasomaculatus
• addend
• addendum
• adder
• adder's fern
• adder's tongue
• adder's tongue fern
• addible
• addict