Words Containing: U,I,L,L,I,N,G

• pen made from a bird's feather

• a stiff hollow protective spine on a porcupine or hedgehog

• any of the larger wing or tail feathers of a bird

• the hollow spine of a feather

• put in effect

• meet the requirements or expectations of

• fill, satisfy or meet a want or need or condition or restriction

• declare invalid

• show to be invalid

• make ineffective by counterbalancing the effect of

• not disposed to and refusing to do something

• in spite of contrary volition

• introduce light into

• a person who speaks two languages fluently

• using or knowing two languages