run on

phrasal verb·2 senses·particle on

Usefulness

Meanings

1

Continue without stopping, often longer than expected

Why “on”? An action, event, state, or path continues or moves to a later point.

The talk ran on for hours.
The talk continued for hours, longer than expected.
The film ran on so long that we missed the last bus.
The film continued longer than expected, so we missed the last bus.
2

Use a particular fuel or power source to work

Why “on”? One thing supports another. A plan may need people, facts, money, or past success.

This bus runs on electricity.
This bus uses electricity as its power source.
Does this old heater run on gas or oil?
Does this old heater use gas or oil as its power source?

Don't confuse with

run onrun off

Run on means continue without stopping, often longer than expected. Run off means leave running, often abruptly.

run onrun over

Run on means continue without stopping. Run over means continue beyond the planned end time.

Test yourself

The talk ran on for hours. What does it mean?

Nearby in the meaning map

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