One Definition
(mathematics) The neutral element with respect to multiplication in a ring.
A ketone.
(obsolete) To cause to become one; to gather into a single whole; to unite.
- In accord or unity.
- Everyone.
- Individually in succession.
- making no difference; of no importance
- of the same opinion; in accord
Other Word Forms of One
Noun
Idioms, Phrasal Verbs Related to One
- at one
- one and all
- one by one
- all one
- at one
- one and all
- one after another
- one another
- one by one
- one of these days
- one of those days (or weeks, etc.)
- one of those things
- the one
Origin of One
-
From Middle English one, oon, on, oan, an, from Old English ān ("one"; same word as an), from Proto-Germanic *ainaz (“one"), from Proto-Indo-European *óynos (“single, one"). Cognate with Scots ae, ane, wan, yin (“one"); North Frisian Ã¥n (“one"); Saterland Frisian aan (“one"); West Frisian ien (“one"); Dutch een, één (“one"); German Low German een; German ein, eins (“one"); Swedish en (“one"); Icelandic einn (“one"); Latin unus (“one") (Old Latin oinos); Russian один (odin).
From Wiktionary
-
Middle English on from Old English ān oi-no- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
Probably from Greek -ōnē feminine patronymic suff
From American Heritage Dictionary of the English Language, 5th Edition
arbitrary use of Gr -ōnē, used to signify a female descendant of
From Webster's New World College Dictionary, 5th Edition
Probably Ancient Greek -όνη (-onÄ“)
From Wiktionary
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