這個拼法底下其實是2個不同的字，意思沒有關係， 只是長得一樣。下面分開列出來。跳到 sign in (write your name arriving) · sign in (log in to an account)
1
sign in
A second word, same spelling
2
sign in
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
sign inverb
- 1
To sign one's name on a list when entering a place, to indicate one's arrival.
- In order to get into the office after hours, you'll have to sign in at the security desk.
- Harper signed in with the rangemaster and handed him her gun. He reloaded it with six shells and handed it back, together with two sets of ear defenders.
- 2
computingengineeringmathematicsTo take some action to access a secured program or web page on a computer; to log in.
- He signed in using his own cybername: Point Guard.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。