noun · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
/ɹɛl.əˈtɪv.ɪ.ti/
[-ɾi]t-flapping
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -ɪvɪti
CMU ARPABET:R EH2 L AH0 T IH1 V AH0 T IY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The state of being relative to something else; the absence of universally applicable rules or standards; relativism; (countable) an instance of this.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
Ellipsis of principle of relativity (“the principle that the laws of physics should be the same for all observers”).
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, alt-of, ellipsis, uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
Ellipsis of principle of relativity (“the principle that the laws of physics should be the same for all observers”).
Also Einsteinian relativity: the reliance of the nature of physical phenomena (such as gravity, light, mass, and time) on the relative motion between an observer and the thing observed, as developed by Albert Einstein in two theories, special relativity and general relativity.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
An evaluation of the similarities and differences between things; a comparison; hence, a difference in position or status between things; a disparity.
Definition source: English Wiktionary via Wiktextract
Usage: countable, in-plural, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
An evaluation of the similarities and differences between things; a comparison; hence, a difference in position or status between things; a disparity.
The difference in pay or positions between different employees in a business (internal relativity), or between different businesses (external relativity); a differential.
Definition source: English Wiktionary via Wiktextract
Usage: countable, in-plural, specifically, uncountable, usually
Topics: economics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
the quality of being relative and having significance only in relation to something else
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: quality
7
noun
Meaning 7
(physics) the theory that space and time are relative concepts rather than absolute concepts
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: theory of relativity, relativity theory, Einstein's theory of relativity
Antonyms: none provided
Broader terms: scientific theory
Narrower terms: general relativity, general theory of relativity, general relativity theory, Einstein's general theory of relativity, special relativity, special theory of relativity, special relativity theory, Einstein's special theory of relativity
History
Etymology
From relative (“connected to or depending on something else”) + -ity (suffix forming nouns from adjectives where the nouns refer to the properties, qualities, or states described by the adjectives). Sense 2.1 (“reliance of the nature of physical phenomena on the relative motion between an observer and the thing observed”) is a translation of German Relativität (“relativity”) used in the works of the German-American theoretical physicist Albert Einstein (1879–1955). Morphologically relative + -ity.
Across languages
Translations
53 source translations are retained for this English entry.
Armenian:
հարաբերականություն
(haraberakanutʻyun)
— the state of being relative to something else — see also relativism
Azerbaijani:
nisbilik
— the state of being relative to something else — see also relativism
Azerbaijani:
relyativizm
— the state of being relative to something else — see also relativism
Belarusian:
адно́снасць
(adnósnascʹ)
— the state of being relative to something else — see also relativism
Catalan:
relativitat
— the state of being relative to something else — see also relativism
Chinese Mandarin:
相對性 /相对性
(xiāngduìxìng)
— the state of being relative to something else — see also relativism
Chinese Mandarin:
關聯性 /关联性
(guānliánxìng)
— the state of being relative to something else — see also relativism
Chinese Mandarin:
相關性 /相关性
(xiāngguānxìng)
— the state of being relative to something else — see also relativism
Czech:
relativnost
— the state of being relative to something else — see also relativism
Czech:
relativita
— the state of being relative to something else — see also relativism
Finnish:
suhteellisuus
— the state of being relative to something else — see also relativism
French:
relativité
— the state of being relative to something else — see also relativism
German:
Relativität
— the state of being relative to something else — see also relativism
Hindi:
आपेक्षिकता
(āpekṣiktā)
— the state of being relative to something else — see also relativism
Irish:
coibhneasacht
— the state of being relative to something else — see also relativism
Japanese:
相対性
(sōtaisei)
— the state of being relative to something else — see also relativism
Japanese:
相対
(sōtai)
— the state of being relative to something else — see also relativism
Norwegian:
relativitet
— the state of being relative to something else — see also relativism
Polish:
względność
— the state of being relative to something else — see also relativism
Portuguese:
relatividade
— the state of being relative to something else — see also relativism
Romanian:
relativitate
— the state of being relative to something else — see also relativism
Russian:
относи́тельность
(otnosítelʹnostʹ)
— the state of being relative to something else — see also relativism
Serbo-Croatian:
релативност
— the state of being relative to something else — see also relativism
Serbo-Croatian:
relativnost
— the state of being relative to something else — see also relativism
Spanish:
relatividad
— the state of being relative to something else — see also relativism
Swedish:
relativitet
— the state of being relative to something else — see also relativism
Tagalog:
katugnayan
— the state of being relative to something else — see also relativism
Ukrainian:
відно́сність
(vidnósnistʹ)
— the state of being relative to something else — see also relativism
Welsh:
perthnasedd
— the state of being relative to something else — see also relativism
Armenian:
հարաբերականություն
(haraberakanutʻyun)
— principle that the laws of physics should be the same for all observers
Azerbaijani:
nisbilik
— principle that the laws of physics should be the same for all observers
Bulgarian:
относителност
(otnositelnost)
— principle that the laws of physics should be the same for all observers
Catalan:
relativitat
— principle that the laws of physics should be the same for all observers
Chinese Mandarin:
相對論 /相对论
(xiāngduìlùn)
— principle that the laws of physics should be the same for all observers
Finnish:
suhteellisuus
— principle that the laws of physics should be the same for all observers
French:
relativité
— principle that the laws of physics should be the same for all observers
German:
Relativität
— principle that the laws of physics should be the same for all observers
Greek:
σχετικότητα
(schetikótita)
— principle that the laws of physics should be the same for all observers
Hindi:
आपेक्षिकता
(āpekṣiktā)
— principle that the laws of physics should be the same for all observers
Irish:
gaolmhaireacht
— principle that the laws of physics should be the same for all observers
Irish:
coibhneasacht
— principle that the laws of physics should be the same for all observers
Latin:
relātīvitās
— principle that the laws of physics should be the same for all observers
Polish:
względność
— principle that the laws of physics should be the same for all observers
Portuguese:
relatividade
— principle that the laws of physics should be the same for all observers
Romanian:
relativitate
— principle that the laws of physics should be the same for all observers
Russian:
относи́тельность
(otnosítelʹnostʹ)
— principle that the laws of physics should be the same for all observers
Spanish:
relatividad
— principle that the laws of physics should be the same for all observers
Tagalog:
katugnayan
— principle that the laws of physics should be the same for all observers
Ukrainian:
відно́сність
(vidnósnistʹ)
— principle that the laws of physics should be the same for all observers
Welsh:
perthnasedd
— principle that the laws of physics should be the same for all observers
Georgian:
ფარდობითობა
(pardobitoba)
— reliance of the nature of physical phenomena on the relative motion between an observer and the thing observed, as developed by Albert Einstein in two theories
Hindi:
आपेक्षिकता
(āpekṣiktā)
— reliance of the nature of physical phenomena on the relative motion between an observer and the thing observed, as developed by Albert Einstein in two theories
Irish:
coibhneasacht
— reliance of the nature of physical phenomena on the relative motion between an observer and the thing observed, as developed by Albert Einstein in two theories