1. (noun)three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace the cardinalnumber that is the sum of one and one and one
3. (noun)trio three performers or singers who perform together
4. (noun)trio, triad, triplet, triple a set of three similar things considered as a unit
5. (noun)trio, threesome, triad, trinity threepeople considered as a unit
Definition of 'TRIO'
Webster Dictionary
1. (noun)TRIO three, considered collectively; three in company or acting together; a set of three; three united
2. (noun)TRIO a composition for three parts or three instruments
3. (noun)TRIO the secondary, or episodical, movement of a minuet or scherzo, as in a sonata or symphony, or of a march, or of various dance forms; -- not limited to threeparts or instruments
Definitions of TRIO 
Afrikaans: trio
Arabic: مَجْموعَةٌ من ثَلاثَه
Bulgarian: трио
Brazilian: trio
Czech: trio
German: das Trio
Danish: trio
Greek: τρίο
Spanish: trío
Estonian: kolmik, trio
Farsi: گروه سه گانه
Finnish: kolmikko
French: trio
Hebrew: שִׁלישִייָה
Hindi: तीन का समूह
Croatian: trio
Hungarian: hármas, trió
Indonesian: tiga sekawan
Icelandic: tríó
Italian: trio
Japanese: ３っ組
Korean: 3인조
Lithuanian: trejetas, trijulė
Latvian: trijotne
Malay: tiga serangkai
Dutch: trio
Norwegian: trio, trekløver
Polish: trio
Persian: گروه سه گانه
Pashto: دری ګونی ډله
Romanian: trio
Russian: трое; тройка; три
Slovenian: trio
Serbian: trio
Swedish: trio
Thai: กลุ่มที่ประกอบด้วย 3 คน
Turkish: üçlü, trio
Taiwanese: 三(人或件)一組
Ukrainian: тріо; трійка
Urdu: تين کي جماعت
Vietnamese: nhóm gồm ba thành viên
Chinese: 三（人或件）一组
