裝有軟墊的長椅座，有靠背和兩側扶手，主要供人坐於其上，而不是躺臥用。和「睡椅(躺臥家具)」截然不同，「睡椅（躺臥家具）」在靠背處有支撐物，左右只有一側高起可伏靠，主要供人躺臥，而不是坐靠用。「沙發」一詞首先是於西元十七世紀末法國使用，和「豪華沙發」(canapé)一詞互通。「沙發」(sofa)和「長靠椅」(settee) 這兩個詞彙在二十世紀的用法當中其實相互通用，但兩者間有個顯著的不同處：沙發一般整件皆裝有填充軟墊。

沙發(多座位傢具)　(P,,U,繁體中文-偏好,D,,)
sha fa (P,,U,韋氏拼音-偏好,UF,U,U)
shā fā(P,,U,漢語拼音-偏好,UF,U,U)
sha fa (P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
sofas(P,,U,英文-偏好,D,U,PN)
sofas(P,,U,法語-偏好,D,U,PN)
sofa(,U,英文-非偏好,AD,U,SN)
sofa(,U,荷蘭語-非偏好,AD,U,U)
sofa(,U,法語-非偏好,AD,U,SN)
couches(seating furniture)　(,U,英文-非偏好,UF,U,N)
sophas(,U,英文-非偏好,UF,U,N)
sofa's(,U,荷蘭語-非偏好,D,U,U)
canapé(general seating furniture)　(,U,法語-非偏好,UF,U,N)
sofás(P,,U,西班牙語-偏好,D,U,PN)
sofá(,U,西班牙語-非偏好,AD,U,SN)

藝術與建築詞典根目錄
....物件層面
........裝備與設備
............裝備 (層級名)
................家俱 (人工製品)
....................<依形式或功能區分之家具陳設>
........................家具
............................<依表現形式或功能區分之家具>
................................座位傢具
....................................<多個座位傢具>
........................................沙發 (多座位傢具)

distinguished from....	長椅(躺臥家具)
distinguished from....	長靠椅

英文....	Long, upholstered seating objects with a back and two ends, and primarily used for sitting rather than reclining. Distinct from "couches (reclining furniture)" which have a back support and one end and are primarily used for reclining rather than sitting. The term "sofa" was first used in France at the end of the 17th century as an alternative for canapé. The terms sofa and settee are virtually interchangeable in 20th-century usage but there is a distinction between the two; a sofa is generally completely upholstered.
荷蘭語....	Lange, beklede zitbanken met een rugleuning en twee armleuningen; worden hoofdzakelijk gebruikt om op te zitten en niet om op te liggen. Te onderscheiden van 'rustbanken (sofa's)', die een ruggensteun aan één kant hebben en die voornamelijk worden gebruikt om op te liggen en niet om op te zitten. Tussen de termen 'settee' en 'sofa' wordt tegenwoordig vrijwel geen onderscheid gemaakt, maar er is wel degelijk een verschil: een sofa is meestal volledig bekleed.
西班牙語....	Formas de asiento tapizadas y alargadas con un respaldo y dos extremos; usados en primer lugar para sentarse más bien que recostarse. Se diferencia de "reposera” que tiene un respaldo de apoyo y un extremo y se usa principalmente para recostarse más bien que para sentarse.

沙發(多座位傢具)............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 October 14, 2013
sofas............	[VP]
.................	Aronson, Encyclopedia of Furniture (1959) 397
.................	Sheraton, Cabinet Dictionary (1970) 305
.................	Sheraton, Cabinet-Makers' and Upholsterers' Drawing Book (1802) illustration, PL, Pl. 35, 46-47
.................	Chippendale, Gentleman and Cabinet-Maker's Director (1966) plate 29-31
.................	Schwartz, Chairs, Tables, Sofas, Beds (1982) 160
.................	Fleming and Honour, Dictionary of the Decorative Arts (1977) 744
.................	Eriksen, Early Neo-Classicism in France (1974) illustration, 337
.................	Gloag, Short Dictionary of Furniture (1965) 437
.................	Smith, Collection of Designs for Household Furniture (1970) 11
.................	Hayward and Kirkham, William and John Linnell (1980) Vol. 2, 118
.................	Hepplewhite, Cabinet-Maker and Upholsterer's Guide (1969) illustration, PL, Pl. 21
.................	Harrap's New College French and English Dictionary (1982)
.................	Kane, 300 Years of American Seating Furniture (1976) 225
.................	Loudon Furniture Designs (1970) 30
.................	Southwick & Peluse, Revised Prices (1810) 56
.................	Society of Journeymen Cabinet Makers, Additional Prices (1815) 5
.................	Oxford Companion to the Decorative Arts (1975) 353
.................	Snowden, Pittsburgh Cabinet Makers' Book of Prices (1830) 46
.................	Preston Cabinet and Chair-Makers Book of Prices (1802) 7
.................	RILA, Subject Headings (1975-1990)
.................	Verlet, 18th Century in France (1967)
.................	Webster's Third New International Dictionary (1961)
.................	Watson, History of Furniture (1976) GLOS, see Settees
.................	Winterthur Museum, Object name list, unpub. (1987)
.................	Random House Dictionary of the English Language (1987)
.................	CHIN database
.................	Nomenclature 3.0 for Museum Cataloging (2010)
.................	Montgomery, American furniture: Federal Period (1966) illustration, 291
sofa............	[VP]
.................	Chenhall, Revised Nomenclature (1988)
.................	CHIN database
.................	AAT-Ned (1994-)
couches(seating furniture)............	[VP]
.................	Getty Vocabulary Program rules
sophas............	[VP]
.................	Fleming and Honour, Dictionary of the Decorative Arts (1977) 746
.................	Preston Cabinet and Chair-Makers Book of Prices (1802) 67
sofa's............	[Bureau AAT]
.................	AAT-Ned (1994-)
canapé(general seating furniture)............	[VP]
.................	Grove Dictionary of Art online (1999-2002)
sofás............	[CDBP-DIBAM]
.................	Comité, Plural del término en singular
sofá............	[CDBP-DIBAM]
.................	Miller, Como Reconocer las Antigüedades (1991)
.................	Fleming y Honour, Diccionario de Artes Decorativas (1987)
.................	Rodríguez Bernis, Diccionario de Mobiliario (2006) 313
Subject:............	[Bureau AAT]
.................	Journeymen Cabinet and Chairmakers' Pennsylvania Book of Prices (1811) 79; plain sofas
.................	CHIN database
.................	Van Dale groot woordenboek (1994)

Getty AAT: 300038634 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300038634
聯合目錄： 沙發 、sha fa 、shā fā 、sha fa 、sofas 、sofa 、couches 、sophas 、sofa 、sofa's 、sofas 、sofa 、canapé 、sofás 、sofá