Pronunciation: /ɑn/
preposition a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause
A1 The cat is sitting on the mat.
A2 She put the book on the table.
B1 We are going on a trip next week.
B2 The company is working on a new project.
C1 The scientist conducted research on the effects of climate change.
C2 The artist's work is on display at the museum.
formal The report on climate change was presented at the conference.
informal I read an article on the new restaurant in town.
slang I'm totally hooked on this new TV show.
figurative She's always on cloud nine whenever she's with him.
was
ons
more on
most on
is
will be
has been
is being
on
on
to be on
being on
having been on