- interleukin–2
- interlibrary
- interline
- interlinear
- interlinears
- Interlingua
- interlingual
- interlining
- interlink
- interlock
- interlock
- interlocution
- interlocutor
- interlocutories
- interlocutors
- interlocutory
- interloper
- interlopers
- interlude
- interluded
- interludes
- interluding
- interlunar
- interlunary
- intermarry