complimentary close 
(klōz)
(klōz)n.
A word or phrase, such as Yours truly, placed at the end of a letter or email message before the writer's signature as a polite gesture.
- in (one's) book
- in one's book
- in (one's) cups
- in one's cups
- in (one's) heart of hearts
- in one's heart of hearts
- in (one's) own right
- in one's own right
- in (one's) pocket
- in one's pocket
- in (one's) tracks
- in one's tracks
- in (one's) wheelhouse
- in one's wheelhouse
- in one/the same breath
- in on the kill
- inoperability
- inoperable
- inoperably
- inoperative
- inoperativeness
- inoperculate
- inopportune
- inopportunely
- in order that