invader

C2+ Topic:Numbers & Quantity

US /ɪnˈveɪdɚ/ UK /ɪnˈveɪdə/ See IPA manual

Meanings

1

noun
one who enters forcibly or intrudes, especially with hostile intent

The villagers buried their grain to keep it from the invaders.

Thesaurus

Synonyms

1 noun · one who enters forcibly or... attacker raider aggressor intruder occupier trespasser

Opposites

defender protector

Word family

Related forms invade invasioninvasive

Etymology

From invade (from Latin invadere 'to go into, attack', from in- 'in' plus vadere 'to go') plus the agentive suffix -er.

invadere Latin vadere Latin

View etymology graph ->

Topics

Numbers & Quantity Word Formation & Derivatives

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# invader

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /ɪnˈveɪdɚ/
**IPA (UK):** /ɪnˈveɪdə/

## Meanings
1. one who enters forcibly or intrudes, especially with hostile intent

## Examples
- The villagers buried their grain to keep it from the invaders.

## Synonyms
- attacker
- raider
- aggressor
- intruder
- occupier
- trespasser

## Antonyms
- defender
- protector

## Related Forms
- invade
- invasion
- invasive

## Roots and Affixes
- Root: invadere
- Root: vadere

## Etymology
From invade (from Latin invadere 'to go into, attack', from in- 'in' plus vadere 'to go') plus the agentive suffix -er.

## AI Etymology
invader comes from invade (from Latin invadere 'to go into, attack', from in- 'in' plus vadere 'to go') plus the agentive suffix -er. Morphologically, the ending is part of the etymology: the suffix is attached to the older base named in the history, producing a later English derivative. In present English, the noun sense is "one who enters forcibly or intrudes, especially with hostile intent", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as invade, invasion, and invasive. Its semantic neighborhood includes attacker, raider, aggressor, and intruder, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Latin invadere and Latin vadere.

## Topics
- Numbers & Quantity
- Word Formation & Derivatives

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invader

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