sign on's Usage Examples:

zodiac (most commonly used in Western astrology), the Sun transits this sign on average from October 23 to November 22.

The Sun transits this sign on average between September 23 (September equinox) and October 23.

It is also often used as single sign on for third party services.

In 1906, the theatre introduced the first moving electrical sign on Broadway to advertise its productions.

1 in 1994, allowing two new stations to sign on: KBIQ (now KIBT) 96.

Synonyms:

clew; token; clue; cue; mark;

Antonyms:

stand still; go off; disadvantage; refrain; leave office;