book on
B2 neutral inseparable transitive
In simple words
To buy or reserve your spot on a flight, tour, or class.
Literal meaning: To make a booking that puts you on a vehicle or event — 'on' indicates being a passenger or participant.
Meanings
1 B2 neutral
To reserve a seat or place on a flight, train, ship, or similar transport.
"I've managed to book on the early morning flight to Amsterdam."
Grammar: inseparable
2 B2 neutral
To reserve a place on a course, training programme, or tour.
"Have you booked on the project management course yet? Places are filling up fast."
Grammar: inseparable
Usage notes
British English. The preposition 'on' reflects the idea of being 'on' a plane, ship, tour, or course. Common in travel and education contexts. Often followed by the name of a flight, cruise, or training programme.
Commonly used with
flight cruise course tour trip training
Forms
Base
book on
I/you/we/they
3rd person
books on
he/she/it
Past simple
booked on
yesterday
Past participle
booked on
have + pp
-ing form
booking on
continuous
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