letterrecord
nounUK /ˈletəˌrekɔːd/
US /ˈletərˌrekərd/
A letter record is a written note that keeps track of letters you send or get.
She kept a letter record of every card her pen pal mailed her.
OTHER MEANINGS
2. A list that shows which letters of the alphabet have been learned.
The teacher checked the letter record to see who knew all their ABCs.
3. A file that stores copies of official letters.
The office keeps a letter record for every message sent to parents.
4. A note that marks an important letter for later use.
He made a letter record so he would not forget the letter from the bank.