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10-Letter Words Starting with SY

For puzzles requiring SY prefixes, here are all 10-letter word options. Popular examples include SYBARITISM, SYCOPHANCY, SYCOPHANTS, plus SYLLABLING, SYLLABUSES, SYLLOGISMS and many more. Use the table below to find the perfect word for your game.

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81 words

Word	Length	Syllables
sybaritism	10	4
sycophancy	10	4
sycophants	10	3
syllabling	10	3
syllabuses	10	4
syllogisms	10	3
syllogists	10	3
syllogized	10	4
syllogizes	10	4
sylvanites	10	4
symbolical	10	4
symbolised	10	4
symbolises	10	4
symbolisms	10	3
symbolists	10	3
symbolized	10	4
symbolizer	10	4
symbolizes	10	4
symbolling	10	3
symmetries	10	3
symmetrize	10	3
sympathies	10	3
sympathins	10	3
sympathise	10	3
sympathize	10	3
sympatries	10	3
symphonies	10	3
symphonist	10	3
symphyseal	10	3
symphysial	10	3
symposiast	10	3
symposiums	10	3
synaereses	10	4
synaeresis	10	4
synagogues	10	4
synalephas	10	4
synaloepha	10	4
syncarpies	10	3
syncarpous	10	3
synchronal	10	3
synchronic	10	3
syncopated	10	4
syncopates	10	4
syncopator	10	4
syncretise	10	3
syncretism	10	3
syncretist	10	3
syncretize	10	3
syndactyly	10	4
syndesises	10	4
syndicated	10	4
syndicates	10	4
syndicator	10	4
synecdoche	10	3
synecology	10	5
synergetic	10	4
synergisms	10	3
synergists	10	3
synkaryons	10	3
synonymies	10	4
synonymist	10	4
synonymity	10	5
synonymize	10	4
synonymous	10	4
synopsized	10	4
synopsizes	10	4
synoptical	10	4
synostoses	10	4
synostosis	10	4
syntactics	10	3
syntagmata	10	4
synthesist	10	3
synthesize	10	3
synthetase	10	3
synthetics	10	3
syphilises	10	4
syphilitic	10	4
systematic	10	4
systemized	10	4
systemizes	10	4
systemless	10	3

FAQs

Are SY-starting words common?
SY is a frequent start; probing vowel swaps after SY quickly narrows options.

Is this list good for crosswords?
Yes—filter by length mentally and scan definitions when available.