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
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Received-Pronunciation:/ˌs(j)uː.pə(ɹ).pəˈzɪʃ.ən/
UK:Recorded audio is listed in the source snapshot.
Canada, General-American:/ˌsu.pɚ.pəˈzɪʃ.ən/
Canada:Recorded audio is listed in the source snapshot.
Australian:/ˌsʉː.pə.pəˈzɪʃ.ən/
Australian:[ˌsïɯ.pə.pəˈzɪʃ.ən]
Australia:Recorded audio is listed in the source snapshot.
rhymes with -ɪʃən
1
noun
Meaning 1
The placing of one thing on top of another.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: supraposition, superimposition
Antonyms: none provided
2
noun
Meaning 2
The deposition of one stratum over another; the principle that in a series of sedimentary strata, the lower strata are the older.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The situation in quantum mechanics where two or more quantum states are added together (superposed) to yield another valid quantum state.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: quantum mechanics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
the placement of one thing on top of another
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.