sign (mark or another symbol used to represent something; clearly visible object, generally flat, bearing a short message in words or pictures)
sign, signal (gesture or look that replaces words and is used to convey some information to someone)
sign (proof or evidence of something)
sign (that which shows that something exists or may happen)
mark (physical mark on the body left by something)
sign, trace (that which shows that something existed or happened)
banner (coat of arms or a banner with a coat of arms)
(obsolete) banner (military basic organizational and tactical unit, approximately equivalent to the current company)
(obsolete) paragraph; chapter; section
(obsolete) tumulus, barrow (mound of earth over a grave)
(obsolete) password
(obsolete) evidence; legitimation (recommendation, issued e.g. through a court to a priest to issue a certificate of interest)
(obsolete) chemical symbol
(obsolete) sign (trait, characteristic)
(obsolete) sign (property of the body that indicates a disease and, unlike a symptom, can be detected objectively by someone other than the patient)
(obsolete) banner, emblem