Is “Mouse” a Scrabble word?

1.Any small rodent of the genus Mus.

2.A member of the many small rodent and marsupial species resembling such a rodent.

3.A quiet or shy person.

1.To move cautiously or furtively, in the manner of a mouse (the rodent) (frequently used in the phrasal verb to mouse around).

2.To hunt or catch mice (the rodents), usually of cats.

3.To close the mouth of a hook by a careful binding of marline or wire.

“Captain Higgins moused the hook with a bit of marline to prevent the block beckets from falling out under slack.”