Overline

An overbar groups text; context sets meaning. Math uses include repeating decimals, means, complements, and conjugates. This line won't span a word.

Text symbol

What ‾ means

It groups or marks the text below. In math, this grouping bar is a vinculum; it marks repeating digits, means, complements, or conjugates.

Ancient Greek writers put lines over letters used as numbers. Latin manuscripts used overlines for abbreviations and to multiply Roman numerals by 1,000. Medieval Indian decimal writing put an overline above the units digit to separate whole and fractional parts. Arabic-script typography also uses overlines for emphasis.

Why won't it span a word?

It is a spacing character. It does not attach to the previous letter. Text formatting or a sequence of combining overlines can span a phrase.

Part of the collection

S̶

Strikethrough & Underline Text

What it means when someone sends it to you

2 readings

They repeat indefinitely.

Don't confuse it with

Macron

A spacing macron, separate but similar.

Combining Overline

It attaches to the previous character; ‾ does not.

￣

Fullwidth Macron

Fullwidth macron is the wide East Asian form, common in kaomoji like (￣▽￣); it sits high like ‾.

Combination ideas

A content, closed-eye smile.

A line along the top of text.

A hill or bump drawn in text.

Questions people ask

Why does ‾ show as a box on some devices?

Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.