"Sign" is a word in LAW AND LEGAL, ENGLISH

To affix one’s name to a writing or instrument, for the purpose of authend-cating it, or to give lt effect as one’s act

Something serving to indicate the existence, or preserve the
memory, of a thing; a token; a memorial; a monument.

Any symbol or emblem which prefigures, typifles, or
represents, an idea; a type; hence, sometimes, a picture.

To mark; to make distinguishable.

To affix a signature to; to ratify by hand or seal; to
subscribe in one's own handwriting.

A military emblem carried on a banner or a standard.

Any character, as a flat, sharp, dot, etc.

That by which anything is made known or represented; that
which furnishes evidence; a mark; a token; an indication; a proof.

A remarkable event, considered by the ancients as indicating
the will of some deity; a prodigy; an omen.

An event considered by the Jews as indicating the divine
will, or as manifesting an interposition of the divine power for some
special end; a miracle; a wonder.

A word or a character regarded as the outward manifestation
of thought; as, words are the sign of ideas.

A motion, an action, or a gesture by which a thought is
expressed, or a command or a wish made known.

The twelfth part of the ecliptic or zodiac.

A lettered board, or other conspicuous notice, placed upon or
before a building, room, shop, or office to advertise the business
there transacted, or the name of the person or firm carrying it on; a
publicly displayed token or notice.

A character indicating the relation of quantities, or an
operation performed upon them; as, the sign + (plus); the sign --
(minus); the sign of division Ö, and the like.

An objective evidence of disease; that is, one appreciable by
some one other than the patient.

That which, being external, stands for, or signifies,
something internal or spiritual; -- a term used in the Church of
England in speaking of an ordinance considered with reference to that
which it represents.

To represent by a sign; to make known in a typical or
emblematic manner, in distinction from speech; to signify.

To make a sign upon; to mark with a sign.

To assign or convey formally; -- used with away.

To be a sign or omen.

To make a sign or signal; to communicate directions or
intelligence by signs.

To write one's name, esp. as a token of assent,
responsibility, or obligation.

Hence, one of the gestures of pantomime, or of a language of
a signs such as those used by the North American Indians, or those used
by the deaf and dumb.