Definitions of sign
The word "sign" uses 4 letters: gins.
n. - That by which anything is made known or represented; that which furnishes evidence; a mark; a token; an indication; a proof. 2
n. - A remarkable event, considered by the ancients as indicating the will of some deity; a prodigy; an omen. 2
Words formed by adding one letter before or after sign (in bold), or to gins in any order: