sign

/saɪn/3 phrasal verbs

The plain verb means to write your name to authorise something.

Sign up is to register for something. Sign in and sign out are the login pair, and also the visitor-book pair. The G in SIGN is silent — /saɪn/, exactly like the word sine.

Side by side

Every SIGN phrasal verb, with the one line that keeps it apart from its siblings. Tap any one to open it.

Phrasal verb	Means	How to remember it
sign upNo object	register for a course, service or event	UP = you add your name to the list.
sign inNo object	record your arrival; log into an account	IN = you enter the system.
sign outNo object	record your departure; log out	OUT = you leave the system.

Phrasal verbs with SIGN — what each one means