[sain]
n.
標記, 符號, 記號, 征兆, 跡象, 征候
v.
簽名(於), 署名(於)～, 簽署
壹、 n.（名詞）
Something that suggests the presence or existence of a fact, condition, or quality.
標誌：顯示事實、情況或性質在場或存在的某物
An act or a gesture used to convey an idea, a desire, information, or a command:
手勢：傳達壹種思想、欲望、消息或命令的動作或姿勢：
gave the go-ahead sign.
給了壹個放行手勢
Sign language.
手勢語
A displayed structure bearing lettering or symbols, used to identify or advertise a place of business:
招牌：上面有文字或符號的陳列裝置，用來表明壹個生意場所的位置或為之作廣告：
a motel with a flashing neon sign outside.
壹個外面有塊閃閃發亮的霓紅燈廣告招牌的汽車旅館
A posted notice bearing a designation, direction, or command:
標牌：上面有說明、指示或命令的張貼告示牌：
an EXIT sign above a door; a traffic sign.
門上方寫著“出口”壹字的標牌；交通標誌
A conventional figure or device that stands for a word, a phrase, or an operation; a symbol, as in mathematics or in musical notation.
符號：用來代表壹個詞、短語或壹個操作的習慣性圖形或圖案；數學或樂符中的符號
pl. sign An indicator, such as a dropping or footprint, of the trail of an animal:
復數 sign 蹤跡：動物遺跡的指示物，如壹堆糞便或腳印：
looking for deer sign.
尋找鹿的蹤跡
A trace or vestige:
跡像：痕跡或遺跡：
no sign of life.
沒有生命的跡象
A portentous incident or event; a presage:
前兆，預兆：預示性的事情或事件；預兆：
took the eclipse as a sign from God.
把月蝕當作神的預示
A body manifestation that serves to indicate the presence of malfunction or disease.
體癥：用來指示出現機能失調或疾病的身體表現
One of the 12 divisions of the zodiac, each named for a constellation and represented by a symbol.
宮：黃道帶十二個分區中的壹個，每壹個帶都以壹個星座的名字命名，用壹個圖形表示
二、 v.（動詞）
signed,sign.ing,signs
v.tr.（及物動詞）
To affix one's signature to.
簽署：在…上簽上自己的名字
To write (one's signature).
簽名：寫（自己的簽名）
To approve or ratify (a document) by affixing a signature, seal, or other mark:
簽準：通過在上面簽名、蓋章或用其它記號表示同意或批準（壹個文件）：
sign a bill into law.
簽字批準壹項法案
To hire or engage by obtaining a signature on a contract:
簽約：通過使其在合約上簽字而雇傭或聘請：
signed a rookie pitcher for next season; sign up actors for a tour.
為下壹個賽季簽約雇了壹個剛剛參加比賽的投手；為了巡回演出簽約雇傭了許多演員
To relinquish or transfer title to by signature:
簽約放棄：通過簽約放棄或轉讓：
signed away all her claims to the estate.
簽約放棄了她對那塊地產的所有權
To provide with a sign or signs:
安裝指示牌：安裝壹個或多個指示牌：
sign a new highway.
在壹條新公路上裝指示牌
To communicate with a sign or by sign language:
打手勢：用手勢或手勢語言交流：
signed his approval; sign instructions to a hearing-impaired teammate.
用手勢表示同意；用手勢向壹個聽力不健全的隊友傳達指示
To consecrate with the sign of the cross.
劃十字祝福
v.intr.（不及物動詞）
To make a sign or signs; signal.
打信號：作壹個或多個手勢；打信號
To use sign language.
使用手語
To write one's signature.
簽名
sign in
To record the arrival of (another or oneself) by signing a register.
簽到：通過在簽名記錄（另壹個人或者是自己的）到達
sign off
To announce the end of a communication; conclude.
宣布廣播結束；結束
To stop transmission after identifying the broadcasting station.
在說完廣播電臺臺名之後停止播送
Informal To express approval formally or conclusively:
非正式用語 正式同意：正式或結論性地表示同意：
got the Congress to sign off on the tax proposal.
使國會正式同意這項稅務提案
sign on
Informal To enlist oneself, especially as an employee:
非正式用語 受雇：使自己受雇，尤其是作為壹個雇員：
“Retired politicians often sign on with top-dollar law firms”(New York Times)
“退休的政客經常受雇於壹些有錢的法律事務所”(紐約時報)
To start transmission with an identification of the broadcasting station.
宣布廣播開始：在確認廣播電臺臺名之後開始廣播
sign out
To record the departure of (another or oneself) by signing a register.
簽名登記外出：登記記錄（其它人或自己的）離去
sign up
To agree to be a participant or recipient by signing one's name; enlist:
經報名獲得：通過簽名同意成為…的成員或接受者；應募：
signed up for military service; signing up for a pottery course.
報名從軍；報名參加陶器制作課程