backal

As a letter s

is the letter s with a.

As an adjective backal is

(humorous|neologism) of, relating to, directed toward, or situated at the back.

As a noun jackal

is any of several wild canine species, native to the tropical old world, smaller than a wolf.

As a verb jackal

is to perform menial or routine tasks.

As an adjective backal is

(humorous|neologism) of, relating to, directed toward, or situated at the back.