atom
Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.
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4 characters
Language
English
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Detailed reference entry for the English word "atom", 4-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "atom" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "atom" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
atom is aEnglishnoun. It means: The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons. Pronounced /ˈætəm/. Often confused with ATP and att.
| Property | Value |
|---|---|
| Headword | atom |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈætəm/ |
| Letters | 4 |
| Frequency rank | #10,813 |
| Misspellings tracked | 5 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Frequency rank visualization
Spelling & Dictionary Insight
The English entry for atom is 4 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈætəm/. Corpus data places it at rank #10,813 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 12 distinct senses for this headword, so context determines which meaning a reader should apply.
Our Hunspell-derived misspelling index lists 5 documented wrong-spelling variants for atom, with forms such as "aotm", "atmo", and "atomm". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 20 confusable-pair relationships, "ATP", "att", "ATV", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From Middle English attome, from Middle French athome, from Latin atomus (“smallest particle”), from Ancient Greek ἄτομος (átomos, “indivisible”), from ἀ- (a-, “not”) + τέμνω (témnō, “to cut”, o-grade in τομ-) + -ος (-os). Atoms are so named because they we… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is atom, spelled A-T-O-M, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
- 2A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter.
- 3The smallest, indivisible constituent part or unit of something.
- 4In logical atomism, a fundamental fact that cannot be further broken down.
- 5The smallest medieval unit of time, equal to fifteen ninety-fourths of a second.
- 6A mote of dust in a sunbeam.
- 7A very small amount; a whit.
- 8An individual number or symbol, as opposed to a list; a scalar value.
- 9An integer representing a particular string.
- 10A non-zero member of a partially ordered set that has only zero below it (assuming that the poset has a least element, its "zero").
- 11An element of a set that is not itself a set; an urelement.
- 12An age group division in hockey for nine- to eleven-year-olds.
Etymology
From Middle English attome, from Middle French athome, from Latin atomus (“smallest particle”), from Ancient Greek ἄτομος (átomos, “indivisible”), from ἀ- (a-, “not”) + τέμνω (témnō, “to cut”, o-grade in τομ-) + -ος (-os). Atoms are so named because they were historically thought up as to be the smallest unit of matter, and thus indivisible. Doublet of atomus.
This word in other languages
Common misspellings
Also misspelled as: aotm,atmo,atomm,attom,taom
Misspelling Pattern Breakdown
Relative frequency of common misspelling types for atom
Misspelling Variants of "atom"
Frequency rank: #10,813 in English
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Nearby English words
Other entries that begin with the letter A in our English index: