5 Letter Words Starting With IO

4 words — filter by type, see definitions, find your best Wordle guess.

Best Wordle guesses for IO
IOTASIODINIONICIODIC

In 5-letter words starting with IO, the most common letters in position 3 are: D, N, T.

WordTypeDefinition
IODICadjectiveof, relating to, or containing iodine in a higher valence state
IODINnounan older variant form of iodine used in historical chemistry texts
IONICadjectiverelating to ions; of the classical Greek architectural order with scroll capitals
IOTASnounvery small amounts; plural of iota, the ninth letter of the Greek alphabet
Adjectives
IODICIONIC
Nouns
IODINIOTAS

All 5-letter words starting with I

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Frequently asked questions

How many 5-letter words start with IO?

This list has 4 five-letter words starting with IO. Wordle's answer pool is smaller — it uses only common everyday words.

What are the best IO words for Wordle?

With IO confirmed in positions 1–2, try IOTAS, IODIN, IONIC — they cover common letters in positions 3–5.

Can I filter by word type?

Yes — use the filter buttons above the table to show only nouns, verbs, or adjectives. Every word has a definition.