R.S.V.P.
envelope
A four letter word starting with the letter a is able.
A four letter word for 'in addition to' is also.
A four letter word for Seizures is moon
Envelope.
The answer is an envelope. It contains a letter.
The word its is a possessive form of the pronoun 'it', used as an attributive adjective.It is less awkward than saying 'Put the letter in the letter's envelope' or '... the envelope of the letter'.
An 8 letter word, with just one letter in it, is ENVELOPE. 8 letters in the word, 1 letter inside the envelope.
Envelope is the answer.
envelope
The word is "envelope" (which usually holds only one letter).
courtesy
envelope
Envelope.
Envelope
envelope
unseal