Words That Start with OI

There are 20 words that start with OI on Word.ws, from 2 to 8 letters. The most common length is 8 letters (5 words). The words used most often are oil, oi, oily, oiled and ointment.

Meanings from Wiktionary. Not an official Scrabble, Words With Friends or Wordle word list.

2-letter words that start with OI

oi2interj. Said to get someone's attention; hey.

3-letter words that start with OI

oik7n. A member of the lower classes.
oil3n. Liquid fat.

4-letter words that start with OI

oily7adj. Covered with or containing oil.
oink8interj. Representing the grunting sound made by a pig.
oint4v. To anoint.

5-letter words that start with OI

oikos9n. A basic societal unit in Ancient Greece; a household or family line.
oiled6adj. Covered in, or supplied with, oil.
oiler5n. An assistant in the engine room of a ship, senior only to a wiper...
oiran5n. A high-status courtesan in Japan.

6-letter words that start with OI

oidium9n. A fragile spore produced by some fungi.
oiling7n. An application of oil.
oilman8n. Somebody (especially a man) involved in the production, refinement or...

7-letter words that start with OI

oilseed8n. The seed of any of several plants which are used commercially as a...
oilskin11n. Cloth made from cotton and treated with oil and pigment to make it...

8-letter words that start with OI

oilcloth13n. A fabric or cloth treated on one side with a waterproof covering...
oiliness8n. The quality of being oily.
oilskins12n. A waterproof garment, made from oilskin, used especially at sea.
ointment10n. A viscous preparation of oils and/or fats, usually containing...
oiticica12n. The tree Licania rigida, endemic to Brazil and Puerto Rico.

69 rare words that start with OI

Questions about these words

How many words that start with OI are there?: Word.ws lists 20 words that start with OI, plus 69 rare ones.
What are common words that start with OI?: oil, oi, oily, oiled, ointment, oiler, oiling and oink.
Which of the words that start with OI has the highest letter score?: oilcloth scores 13 points with the standard letter tile values.

Related word lists

Word lists and meanings adapted from the Wiktionary entry of each word. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out names, abbreviations, misspellings and offensive words, and ordered the most common words by how often they appear in English (wordfreq). Meanings from Wiktionary; this is not an official Scrabble, Words With Friends or Wordle word list. Wiktionary data of 2026-09-02.

Cite this page: “Words That Start with OI: 20 Words by Length.” Word.ws, https://word.ws/words/starting-with-oi. Based on Wiktionary, CC BY-SA 4.0.