One option is the word gripe.
There are four phonemes in the word "complain."
imps
pore
jack, jazz
This could be a tiff or a spat.
A four-letter word for an open framework for holding things is "rack." Racks are commonly used for storing or displaying items such as books, clothes, or equipment.
Stop
The word "conjoins" - meaning "connects two things together".
Three possibilities are same, pair or twin.
The four-letter word for a two-wheeled vehicle used for carrying things is "bike." If you add the letter "r," it becomes "brike," which is not a standard word. However, if you consider "bike" and add "s," it becomes "bikes," referring to multiple two-wheeled vehicles.
A four letter word starting with the letter a is able.
Four Little Diamonds was created in 1983-09.