Bomb vs Ordnance

When to use each in English, with meaning, register, and examples.

Bomb

Top 1,000 (very common)B1noun

Ordnance

FormalBeyond 10,000 (less common)
Most formal: OrdnanceMost common: Bomb
 BombOrdnance
Pronunciation🇬🇧 /["/bɒm/"]/🇺🇸 /["/bɑːm/"]/🇬🇧 //ˈɔːdnəns//🇺🇸 //ˈɔrdnəns//
MeaningA bomb is a weapon that explodes and causes destruction.Weapons and military equipment.
ExampleThe explosion was caused by a bomb that detonated in the city center.The army inspected the ordnance before the training exercise.
RegisterNeutralFormal
How commonTop 1,000 (very common)Beyond 10,000 (less common)
CEFR levelB1-
Part of speechnoun
Collocationsbig, huge, large, place, plant, put, fall, rain, rain down, attack, blast, explosion, big, huge, large, place, plant, put, fall, rain, rain down, attack, blast, explosionmilitary ordnance, heavy ordnance, ordnance disposal, ordnance survey, light ordnance
Antonymspeace, safety-
Common mistakesConfused with 'bump' - they are different things., Using 'bomb' in a positive context, as it is mostly negative.Confused with 'ordnance' vs 'ordinance' (laws)., Mispronunciation due to unfamiliarity with military terminology., Using in informal contexts where a simpler term would be suitable.
Usage notesUse 'bomb' when referring to explosives or in a metaphorical sense, like 'bombing' a test. It's not suitable for casual conversations about non-explosive subjects.Used mainly in military contexts; not commonly used in everyday conversation.

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Bomb
Ordnance

Frequently asked questions: Bomb vs Ordnance

What's the difference between Bomb and Ordnance?

Bomb: A bomb is a weapon that explodes and causes destruction. Ordnance: Weapons and military equipment.

Which is more formal: Bomb and Ordnance?

Ordnance is the most formal of these.

Which is more common: Bomb and Ordnance?

Bomb is the most common in everyday English.

Can you show an example of each?

Bomb: The explosion was caused by a bomb that detonated in the city center. Ordnance: The army inspected the ordnance before the training exercise.

Can I use Bomb and Ordnance interchangeably?

Not always. Bomb and Ordnance are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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