letter

simple noun120 collocationsAvg. frequency: 7.1
cover letter8.5
business letter8.2
long letter8.0
personal letter8.0
covering letter8.0
capital letters8.0
formal letter7.8
short letter7.5
official letter7.5
angry letter7.2
brief letter7.0
acceptance letter7.0
block letters7.0

Writing each letter separately, not in cursive.

rejection letter6.8
lengthy letter6.5
strongly worded letter6.5
upper-case letters6.5
accompanying letter6.0
explanatory letter5.5
ten-page letter4.0

Used to specify the exact length.

letter box7.0

Refers to the slot in a door (AmE: mail slot) or a public box for posting mail (AmE: mailbox).

letter carrier5.0

(postman/postwoman in BrE)

a letter arrives7.5
a letter comes7.0
the letters of the alphabet7.5
letter of ...8.0

e.g., letter of application, letter of apology

write a letter9.5
send a letter9.0
get a letter8.5
receive a letter8.2

More formal than 'get'.

mail a letter8.0
post a letter8.0
draft a letter6.0

To write a first version of a letter.