One option is the word gripe.
carp
moan
nags
Car-
imps
pore
jack, jazz
This could be a tiff or a spat.
Stop
Three possibilities are same, pair or twin.
The word "conjoins" - meaning "connects two things together".
A four letter word starting with the letter a is able.
Four letter words:theytidytinytobytonytorytraytroy
The four letter word is dawn.
The letter "f."
Several four letter words begin with the letter q. However, there are no four letter words that begin with the letter q and end with the letter o.