What is the crossword answer for the clue: Alphabet quartet

CDEF - a 4 letter word may be the answer you are looking for!

EFGH - a 4 letter word may be the answer you are looking for!

GHIJ - a 4 letter word may be the answer you are looking for!

LMNO - a 4 letter word may be the answer you are looking for!

MNOP - a 4 letter word may be the answer you are looking for!

QRST - a 4 letter word may be the answer you are looking for!

RSTU - a 4 letter word may be the answer you are looking for!

STUV - a 4 letter word may be the answer you are looking for!

ABCD - a 4 letter word may be the answer you are looking for!

Alphabet quartet

4 Character Answers:

ABCD

CDEF

EFGH

GHIJ

LMNO

MNOP

QRST

RSTU

STUV