This page provides a comprehensive list of mathematical symbols with their meanings and usage in mathematics.

Find definitions for over 300,000 words from the most authoritative English dictionary. Continuously updated with new words and meanings.

Jan 15, 2026 · Learn how to use the greater than sign (>), less than sign (<), and greater than or equal to (≥) with examples, tips, and practice strategies for mastering math symbols.

Sep 19, 2016 · In today´s post we will look at the symbols = > < , what they mean, when we can use them and some other curiosities about them.

The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority for 25+ years!

Read our collection of word stories detailing the etymology and semantic development of a wide range of words, including ‘dungarees’, ‘codswallop’, and ‘witch’. Access our word lists and commentaries …

Meanings and definitions of words with pronunciations and translations.

Easy-to-understand definitions, with illustrations and links to further reading. Browse the definitions using the letters below, or use Search above.

Here are the most common geometrical symbols (also see Symbols in Algebra):

The meaning of a word, expression, or gesture is the thing or idea that it refers to or represents and which can be explained using other words. I hadn't a clue as to the meaning of "activism."