fine line

noun

: a very small difference

There's a fine line between being helpful and being intrusive.

There's sometimes only a very fine line between genius and madness.

Examples of fine line in a Sentence

Recent Examples on the Web

The main character, Elizabeth Lamont, has to walk a fine line between her work and personal lives, further complicating the situation. —Noah Lyons, San Diego Union-Tribune, 14 Mar. 2026

There can be a whisper-fine line between feature and bug, and in its persistent thickness and archness of atmosphere, Cold War Choir Practice slides right up to that boundary and perches there. —Sara Holdren, Vulture, 11 Mar. 2026

It’s formulated with anti-aging, fine line-smoothing ingredients including pearl powder, peptides, and algae. —Eva Thomas, InStyle, 9 Mar. 2026

Most European leaders have trodden a fine line between offering limited support for US military action against Iran and warning of a regional conflagration. —Tim Lister, CNN Money, 8 Mar. 2026

Rhymes for fine line

• acridine
• alkaline
• andesine
• anodyne
• anticline
• arginine
• asinine
• atropine
• benzidine
• borderline
• byzantine
• calamine