- instance (an example)
- instants (periods of time)
- isle (an island)
- aisle (a narrow passage)
- its (possessive pronoun)
- it's (contraction of it is)
- Johnson, Samuel
- Jonson, Ben
- later (comparative of late)
- latter (the second)
- lead (present tense)
- led (past tense)
- lessen (verb)
- lesson (noun)
- liable (expresses responsibility or disagreeable probability)
- likely (expresses probability)
- loose (free, not bound)
- lose (to suffer the loss of)
- maintain
- maintenance