Countable Nouns That Start with SI and End with IS

Explore 13 verified English countable nouns starting with SI and ending with IS, including Sis, Sinusitis, Siris, Sialadenitis, Sialosis, Sialolithiasis and Sideritis. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with SIA
5 words
sialadenitis
sialis
sialosis
sialolithiasis
sialostenosis
Starts with SID
1 words
sideritis
Starts with SIK
1 words
sikinnis
Starts with SIN
4 words
sinusitis
sinapis
sinornis
sinopis
Starts with SIR
1 words
siris
Starts with SIS
1 words
sis

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