WordNet

place signs, as along a road; "sign an intersection"; "This road has been signed"
(medicine) any objective evidence of the presence of a disorder or disease; "there were no signs of asphyxiation"
a perceptible indication of something not immediately apparent (as a visible clue that something has happened); "he showed signs of strain"; "they welcomed the signs of spring" (同)mark
a character indicating a relation between quantities; "dont forget the minus sign"
a fundamental linguistic unit linking a signifier to that which is signified; "The bond between the signifier and the signified is arbitrary"--de Saussure
a gesture that is part of a sign language
a public display of a message; "he posted signs in all the shop windows"
engage by written agreement; "They signed two new pitchers for the next season" (同)contract, sign on, sign_up
approve and express assent, responsibility, or obligation; "All parties ratified the peace treaty"; "Have you signed your contract yet?" (同)ratify
communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu" (同)signal, signalize, signalise
mark with ones signature; write ones name (on); "She signed the letter and sent it off"; "Please sign here" (同)subscribe
be engaged by a written agreement; "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera"
communicate in sign language; "I dont know how to sign, so I could not communicate with my deaf cousin"
the 13th letter of the Roman alphabet (同)m
the imperial dynasty of China from 1368 to 1644 (同)Ming dynasty
having a handwritten signature; "a signed letter"

PrepTutorEJDIC

(ある事実・状態・感情などの)『表れ』,印,気配,徴侯(indication);(…の)こん跡,計跡《+『of』+『名』》・『身ぶり』,手まね,合図 / 『標識』,看板 / (数学・音楽などの)記号 / (…の)『象徴』,シンボル(symbol)《+『of』+『名』》・《文》(…の)『前兆』,きざし《+『of』+『名』》・宮(きゅう)(黄道12区分の一つ) ・〈手紙・書類・作品など〉‘に'『署名する』・(…に)〈名前など〉‘を'書く《+『名』+『on』(『to』)+『名』》 / …‘を'雇う契約に署名する・…‘を'合図する,知らせる;…に合図する・署名する・契約書に署名して雇われる
Mach number / mark[s] / Monsieur
(中国の)明,明朝(1368‐1644)
mendeleviumの化学記号