ostium is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Noun (COUNTABLE)

A small opening or orifice, as in a body organ or passage.
Any of the small openings or pores in a sponge.
The mouth of a river.

ostium is a Scrabble valid word

o1s1t1i1u1m3

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 8 points

ostium is an iScramble, QuickWords valid word

o1s2t3i4u5m6

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 21 points

Same letters words (Anagrams)

• TIMOUS

Same letters plus one

• DIMOUTS
• MIDOTSU
• MISSOUT
• MORUTIS
• OPTIMUS
• ORUMTSI
• OUTSWIM
• STOMIUM
• TAOUISM
• TIMEOUS
• TOURISM
• TSUMIKO
• UNMOIST
• UTOPISM
• VOMITUS

Same letters minus one

• MOIST
• MOTUS
• MUSIT
• MUSTO
• MUTIS
• MUTOS
• OMITS
• SMOUT
• SUMTI
• SUOMI
• TUISM
• TUMIS
• UMIST