7-Letter Words Matching O_I____

There are 30 7-letter words that match O_I____. 15 are common words, such as OMICRON and OMINOUS. A rarer one is OXIDISE. 3 words contain a doubled letter.

Full list 30

Common words

omicronominousomittedopiatesopiningopinionorientsorificeorigamioriginsoriolesorisons
omicronominousomittedopiatesopiningopinionorientsorificeorigamioriginsoriolesorisonsoviductoxidantoxidizeopioidsolivineoviformoxidaseoxidateobiismsolivaryomikronomitteropiatedorigansovicideoviparaovisacsoxidise

About this list

Words
30 (15 common words)
Common example
omicron
Rare example
oxidise
Doubled letters
3
Ending in S
10

Questions

How many 7-letter words matching o_i____ are there?

30. 15 of them are common words.

What is a common example?

OMICRON is among the common words in this set.