Starting Letters

7 Letter Words Starting With IO

Need seven-letter words beginning with IO? Here are all 23 from the Collins dictionary, with iodized (18 pts) topping the table on points.

23
Total Words
iodized
Top Scorer
18
Best Score

7 Letter Words Starting With IO

23 words
iodized18 iodizer17 iodizes17 ionized17 ionizer16 ionizes16 iodisms10 iodated9 iodides9 iodised9 ioniums9 ionomer9 iodates8 iodines8 iodiser8 iodises8 ioduret8 ionised8 ionogen8 iolites7 ioniser7 ionises7 ionones7

About These 7-Letter Words

Every entry among the seven-letter words beginning with IO in Collins is collected here and ranked by score. There are 23 to work with, which helps when a prefix or the board fixes your opening letter.

Highest-scoring picks

On points, the strongest play here is iodized at 18. Other high scorers include iodizer (17), iodizes (17), and ionized (17). Because every word is exactly seven letters, any of them can score a bingo when you empty your rack in a single turn.

How these words break down

Out of 23 words, 6 use a high-value tile (J, Q, X or Z) and 9 end in -ES and 5 end in -ED.

Where you can play them

These come from the Collins word list; 20 are also valid in Words With Friends, and 20 appear in the North American list (NWL/TWL). Use the dictionary selector in the finder to match the exact game you are playing.

The list is sorted by Scrabble score by default — tap Points, A–Z or Z–A to reorder it, or use the finder to narrow it down by your own tiles.

FAQs - 7 Letter Words Starting with IO

How many 7-letter words start with IO?

There are 23 seven-letter words that start with IO in the Collins Scrabble Words dictionary used on this site.

What is the highest-scoring 7-letter word that starts with IO?

Iodized scores 18 points, the highest on this page. Playing all seven tiles at once also earns a 50-point bingo bonus in Scrabble.

What are some good 7-letter words that start with IO?

Examples include iodized, iodizer, ionomer, and iodates.

Do 7-letter words score a bingo?

Yes. Using all seven of your tiles in one turn scores a 50-point bonus in Scrabble (35 points in Words With Friends), which makes a seven-letter word one of the most valuable plays in the game.

Are 7-letter words that start with IO valid in Words With Friends?

20 of the 23 are also valid in Words With Friends. Switch the dictionary in the finder to see only those.

Which 7-letter words that start with IO use a Q, Z, X or J?

6 of them include at least one high-value tile, such as iodized, iodizer, and iodizes.