in h - in t
- in hand
- in harness
- in heart of hearts
- in heaven's name
- in her (infinite) wisdom
- in high dudgeon
- in high gear
- in his (infinite) wisdom
- in hock
- in hopes of
- in hopes of doing something
- in hot pursuit
- in hot pursuit
- in hot pursuit of
- in hot pursuit of someone
- in hot pursuit of something
- in hot water
- in hour of need
- in inverted commas
- in its (infinite) wisdom
- in its prime
- in jeopardy
- in jest
- in just a minute
- in just a moment
- in keeping with (something)
- in kind
- in large part
- in league with
- in league with someone
- in leaps and bounds
- in lieu of
- in line for
- in line for something
- in line with
- in line with something
- in living memory
- in living memory
- in loco parentis
- in luck
