tag on
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To hover an RFID device such as a smartcard over a receiver, often with a graphical user interface, in order to make a payment or gain entry.
Where it’s used:
Used
American English
Examples
Contactless smart card readers can be mounted at each door of an LRT car, allowing a rider to “tag on” and “tag off” on boarding and alighting the vehicle.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “tag on” mean?
To hover an RFID device such as a smartcard over a receiver, often with a graphical user interface, in order to make a payment or gain entry.
Is “tag on” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.