American English

How to pronounce focal

adjectiveB2
FOHkl

/ˈfoʊ.kl̩/

2 syllables · Stress the first syllable.

Most important or central to a particular activity, discussion, or situation.

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Meanings & examples

adjectiveformal

Most important or central to a particular activity, discussion, or situation.

The focal issue is the rising cost of housing.

Trust became focal to the discussion.

Good to know

In general writing, focal often means “most important,” not only something related to light.

Common phrases & grammar

focal point · focal issue · focal area

focal + noun

be the focal point of + noun

adjectivetechnicalless common

Related to the point where light rays meet, or seem to meet, in a lens or mirror.

The camera has a short focal length.

The lens creates a sharp focal point.

Common phrases & grammar

focal length · focal plane

focal + noun

adjectivetechnicalless common

Affecting only one limited area, especially of the body or brain.

The scan showed a focal area of inflammation.

The doctor ruled out a focal seizure.

Common phrases & grammar

focal seizure · focal lesion

focal + noun

Useful expressions

focal point

The person, place, or thing that receives the most attention.

The fireplace is the focal point of the room.

focal length

The distance from a lens to the point where it brings light into focus.

This lens has a longer focal length.

Related words & forms