Is “Bound” a Scrabble word?

1. 1.To tie; to confine by any ligature.

2. 2.To cohere or stick together in a mass.

   “Just to make the cheese more binding”

3. 3.To be restrained from motion, or from customary or natural action, as by friction.

   “I wish I knew why the sewing machine binds up after I use it for a while.”

Synonyms: bandage, dress, fasten, fetter, make fast, restrain

1. 1.(with infinitive) Obliged (to).

   “You are not legally bound to reply.”

2. 2.(of a morpheme) That cannot stand alone as a free word.

3. 3.(of a variable) Constrained by a quantifier.