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fine line

fine line

55 5.1
A small difference that is hard to see between similar things
  • noun
translation icon : delgada línea
  • Look, it's good to be cautious, but there's a fine line between caution and fear.
  • walk a fine line
  • tread a fine line
  • a fine line separating

There's such a fine line between perseverance and delusion.

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Examples

  • There's a fine line between genius and insanity.

  • There exists a fine line between identity and nationalism.

  • And if you can walk that fine line, you could be a top player.

  • It's a it's such a fine line between love and hate.

  • People knew how to respect and walk that fine line between truth and fiction within their own characters.

    Academic text (2004)
  • But not everyone understands the fine line between reality and fantasy.

  • Overall, this middle approach draws a very fine line between facts and opinions.

    Academic text (2017)
  • In the end, Congress is left to find the fine line between both extremes.

    Academic text (1990)
  • The special education teacher is a good resource for understanding the fine line between support and enablement.

    Academic text (2014)
  • It's a fine line between success and failure that many people struggle to navigate.

Synonyms

line
vsfine line
1.0

A row of words on a page, for example in an ad

is specifically a subtle distinction between closely related ideas rather than any mark
demarcation
vsfine line
9 6.8

A clear line or limit that shows the difference between things

is a subtle difference rather than an explicitly drawn or created border
dividing line
vsfine line
8 4.1

A clear border between two ideas, groups, or situations

is a very subtle distinction rather than a clear separating boundary
knife-edge
vsfine line
7.5

A very unstable situation that can quickly become much worse or better after a small change

is a subtle boundary without necessarily causing major consequences

Antonyms

A clear and strong difference between two things

1 5.5

How clear and easy to recognize a shape or sound is

How Subtle

fine line
55 5.1
distinction
286 3.5
difference
1.0

Surface Forms

fine line singular
fine lines plural

Morphology

fine + line

The meaning 'a very subtle distinction' is directly derivable from combining 'fine' (delicate, subtle) with 'line' (a division or boundary): the image of a narrow boundary maps straightforwardly to a subtle difference. This compositional metaphor is common across languages and follows ordinary English usage, so a B1 learner who knows the constituents is likely to infer the MWE meaning.

Etymology

The noun fine line comes from the image of a very thin line that just separates two areas, so the things on each side are almost the same. That's why people use fine line to mean a 'very small difference' between two close ideas.