A capital C inside a circle (©), used to indicate a claim of copyright in a work.
A superscript 'TM' (™), used to indicate a claimed but not necessarily registered trademark.
A superscript capital R inside a circle (®), used only for marks formally registered with a national trademark office.
Two short horizontal parallel lines (=), denoting that the values on either side are equal.
The mathematical sign for subtraction, written as a single horizontal stroke.
The diagonal cross used to indicate multiplication.
The mathematical sign for addition, written as an upright cross.
A horizontal stroke with a dot above and below, indicating division.
A plus sign above a minus stroke, giving a tolerance or two possible values.
Two small circles either side of a diagonal stroke, meaning 'per hundred'.
A percent sign with an extra circle, meaning 'per thousand'.
The Greek letter used for the ratio of a circle's circumference to its diameter.
A hooked stroke with a horizontal bar, indicating a root of a number.
The capital Greek sigma, used to indicate a sum over a series.
An elongated S indicating integration in calculus.
A small raised circle marking degrees of temperature, angle or arc.
An equals sign struck through by a diagonal stroke, meaning inequality.
Two stacked wavy strokes, meaning 'roughly equal to'.
Three dots in an upward-pointing triangle, introducing a conclusion.
A looping mark meaning 'and', developed from a ligature of the Latin 'et'.
A lower-case a enclosed by a curling stroke, used in email addresses and handles.
Two pairs of crossing strokes, used as a number mark, a hash and a musical sharp.
A small radiating star used to flag a footnote or an omission.
Two interlocking S shapes, used to cite a numbered section of a text.
A reversed P with a doubled stem, marking the start of a paragraph.
A cross-shaped mark with a long lower arm, used as a second footnote mark.
Three dots marking an omission or a trailing-off in speech.
An S crossed by one or two vertical strokes, used for dollar and peso currencies.
A crossed, looping L, marking pound sterling and other pound currencies.
A rounded E crossed by two horizontal strokes, marking the euro.
A capital Y crossed by one or two horizontal strokes.
A Devanagari 'ra' with a doubled horizontal bar, marking the Indian rupee.
A lower-case c crossed by a vertical stroke, marking a hundredth of a currency unit.
A capital B with two vertical strokes, used for bitcoin.
A hooked stroke above a dot, marking a question.
A vertical stroke above a dot, marking emphasis.
Paired marks enclosing reported speech.
A dot above a comma, joining related clauses.
A filled dot marking an item in a list.
A rounded epsilon meaning membership of a set.
A wavy horizontal stroke with several unrelated uses.
A single upright stroke, used as a separator and an operator.
An angle bracket opening to the right, stating that the left value is smaller.
An angle bracket opening to the left, stating that the left value is larger.