rebel

I UK [ˈreb(ə)l] / US noun [countable]
Word forms "rebel":
singular rebel plural rebels
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1)

a) someone who tries to remove a government or leader using force

Fighting between the rebels and government troops continues in the north.

b) [only before noun] relating to rebels or their activities

a rebel leader/general

rebel forces/troops

The town fell into rebel hands.

2)

a) someone who opposes their leader, especially in politics

Conservative rebels

b) someone who opposes people in authority or opposes accepted ways of doing things

Alex has always been a rebel.

II UK [rɪˈbel] / US verb [intransitive]
Word forms "rebel":
present tense I/you/we/they rebel he/she/it rebels present participle rebelling past tense rebelled past participle rebelled

1) to try to remove a government or leader using force

When senior army officers rebelled, the President was forced to flee the country.

rebel against:

The province has rebelled against the government.

2)

a) to oppose your leader, especially in politics

Militants within the party are now threatening to rebel.

b) to oppose someone in authority, or to oppose accepted ways of doing things

It's natural for teenagers to rebel.

rebel against:

Liberal parents often leave their kids nothing to rebel against.