adj · noun · 4 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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UK:/ˈθɪnə(ɹ)/
Southern-England:Recorded audio is listed in the source snapshot.
US:thĭnʹər
US:/ˈθɪnɚ/
rhymes with -ɪnə(ɹ)
CMU ARPABET:TH IH1 N ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
comparative form of thin: more thin
Definition source: English Wiktionary via Wiktextract
Usage: comparative, form-of
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A liquid substance used to thin the consistency of another liquid.
Definition source: English Wiktionary via Wiktextract
Examples
Turpentine or mineral spirits can be used as a thinner for oil-based paints.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
Something that thins or thins out (another thing).
Definition source: English Wiktionary via Wiktextract
Examples
Pomegranate juice and exercise are great natural blood thinners.
The new type of mechanical thinner allowed thinning of peach blossoms to be completed earlier.
A solid mane thinner is indispensable in finishing the looks of your horse.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
a diluting agent
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: dilutant, diluent
Antonyms: none provided
Broader terms: agent
History
Etymology
From thin + -er.
Across languages
Translations
24 source translations are retained for this English entry.
Bulgarian:
разредител
(razreditel)
— liquid
Chinese Mandarin:
天拿水
(tiānnáshuǐ)
— liquid
Czech:
ředidlo
— liquid
Finnish:
ohennin
— liquid
Finnish:
ohenne
— liquid
French:
diluant
— liquid
German:
Verdünnungsmittel
— liquid
German:
Verdünner
— liquid
German:
Verdünnung
— liquid
Indonesian:
pengencer
— liquid
Japanese:
シンナー
(shinnā)
— liquid
Russian:
раствори́тель
(rastvorítelʹ)
— liquid
Turkish:
tiner
— liquid
Turkish:
inceltici
— liquid
Bulgarian:
разредител
(razreditel)
— something that thins
Finnish:
ohennin
— something that thins
Finnish:
ohentaja
— something that thins
Finnish:
ohennusaine
— something that thins
Finnish:
harvennin
— something that thins
Finnish:
harventaja
— something that thins
German:
Verdünner
— something that thins
Russian:
разбави́тель
(razbavítelʹ)
— something that thins
Russian:
разжижи́тель
(razžižítelʹ)
— something that thins
Russian:
раствори́тель
(rastvorítelʹ)
— something that thins
