Find Synonyms

filter Synonyms

Another word for filter

Choosing another word for filter depends on context, so the 29 synonyms and similar words below are separated across 5 exact definitions and ranked by match strength.
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• noun (Context 1)

A porous device or material used to remove impurities or solid particles from a liquid or gas passed through it.

Usage Example

"We need to replace the water strainer in the refrigerator."

Strongest
strainer
Strong
sieve
sifter
screen
purifier
Weak
riddle
colander

• verb (Context 2)

To pass a liquid, gas, or other substance through a porous material in order to remove impurities.

Usage Example

"The treatment plant filters the river water before distributing it to residential homes."

Strongest
strain
purify
Strong
sieve
sift
refine
clarify
distill
cleanse

• noun (Context 3)

A piece of software or hardware that processes data or signals to remove unwanted information or apply specific effects.

Usage Example

"The email client uses a sophisticated spam blocker to block malicious messages."

Strong
blocker
screen

• verb (Context 4)

To process or assess items, data, or information in order to reject what is unwanted or extract what is useful.

Usage Example

"Human resources uses an automated system to screen applications based on required keywords."

Strongest
screen
weed out
Strong
sift
sort
winnow
cull
vet
separate

• verb (Context 5)

To move slowly or gradually in a specified direction (especially of light, sound, or people).

Usage Example

"Golden sunlight filtered through the dense canopy of the forest."

Strongest
seep
trickle
Strong
percolate
stream
diffuse
penetrate
leach
Weak
ooze

Opposites of filter

The opposite of filter shifts depending on context. Common opposites include:

contaminate
pollute
adulterate
gush
pour
taint
surge
foul
See all opposites of filter

Cite this Entry


Wordmom. (2026). Synonyms for Filter. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/filter
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