4 Letter Words Starting with O (105 Words in English) • 7ESL

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If you’re interested in discovering 4 letter words starting with O, this reference is for you. It provides a comprehensive list of these words, meaning with examples, and some words for kids. This will enhance your learning experience and provide visual aids to better understand the content.

List of 4 Letter Words Starting with O

Here is a list of four-letter words that begin with O:

Oaks
Oath
Oats
Obey
Odds
Oafs
Oars
Oast
Obes
Obia
Obis
Obit
Oboe
Obol
Ocas
Odor
Offs
Ogle
Oils
Odea
Odes
Odic
Odyl
Ofay
Ogam
Ogee
Ogre
Ohed
Ohia
Ohms
Oily
Oink
Okas
Okay
Okes
Okra
Oldy
Olds
Okeh
Oldy
Olea
Oleo
Olio
Oles
Omen
Olla
Omer
Omit
Ones
Once
Onto
Onus
Only
Onyx
Oohs
Oops
Ooze
Oots
Opah
Oozy
Open
Opal
Opes
Oped
Opus
Opts
Orad
Oral
Orcs
Orca
Ores
Ordo
Orgy
Orle
Orts
Orra
Orzo
Oryx
Osar
Oses
Otic
Ossa
Ouch
Otto
Ouph
Oust
Ours
Outs
Ouzo
Oven
Over
Oval
Ovum
Over
Owes
Owed
Owls
Owns
Oxen
Oxes
Oxim
Oxid
Oyes
Oyer
Oyez

The four-letter words beginning with O listed above cover various types of uses and meanings. They include words that involve objects, interjections, prepositions, and animals. An “onyx” refers to a stone-type mineral, while “oops” and “ouch” represent interjections (words that describe a feeling more than meaning). While “onto” is a preposition, “oxen” is the plural term for a type of male cattle.

Some popular words listed above that we hear more often are those such as “oven,” “over,” and “once.” “Oats” refers to a type of grain that is commonly eaten as part of a healthy diet. “Oaks” alludes to a large type of tree, and “owls” a particular type of bird.

Less common words above include those such as “oxid,” “oxim,” “oyer“. Here’s what they mean:

Oxid: A compound where oxygen is combined with another element.
Oxim: A term in chemistry that refers to when a compound containing a hydroxyl group is bound to a carbon atom.
Oyer: In court, this refers to when a hearing of a document is read.

What are 4 letter words?

Four letter words are words that require a total of four letters to be made. There are plenty of them and they’re often used in everyday conversation.

Some examples of these are: “door”, “said”, “four”, and “Mark.” They come in various forms and can provide lots of different meanings. For example, the four terms given here represent an object (door), a descriptive word (said), a number (four), and a name (Mark).

4 Letter Words Starting with O with Meaning and Examples

Oath

Meaning: A solemn promise
Example: “She took an oath to tell the truth in court.”

Ooze

Meaning: To flow or leak slowly
Example: “Mud began to ooze from the cracks in the ground.”

Oven

Meaning: A chamber or compartment used for baking, heating, or drying
Example: “Please preheat the oven to 350 degrees.”

Okay

Meaning: Acceptable or satisfactory
Example: “Are you okay with this decision?”

Opal

Meaning: A gemstone of varying colors
Example: “She wore a beautiful opal ring.”

Omit

Meaning: To leave out or exclude
Example: “Please do not omit any details from the report.”

Ogle

Meaning: To stare at in a lecherous manner
Example: “He couldn’t help but ogle at the stunning view.”

Once

Meaning: One time
Example: “I only tried sushi once.”

Oust

Meaning: To remove or expel
Example: “The committee decided to oust the member for misconduct.”

Obey

Meaning: To follow commands or guidance
Example: “Children should obey their parents and teachers.”

4 Letter Words Starting with O for Kids

Oats
Open
Oven
Okay
Oval
Over
Once
Only
Oink
Onyx
Oops
Omit
Obey
Oars
Odds
Ones

4 Letter Words that Start with O Exercises for Kids

Learning 4-letter words that start with ‘O’ can be an exciting adventure for kids. Here are some engaging activities and exercises to help them master these words.

Create Fill-in-the-Blanks Exercises

Write these words with missing letters and ask the children to fill in the blanks. Here are some examples:

O _ E N
O V _ L
O _ T S
O _ E R
O N _ E
O V _ N
O N _ Y

Forming Quizzes to Test Understanding

Create quizzes to test their understanding of the meanings of 4-letter words starting with ‘O’. Here are some examples:

1. What is a shape that looks like a stretched circle?

Answer: Oval

2. What word means to not be closed?

Answer: Open

3. What is a kitchen appliance used for baking?

Answer: Oven

4. What word means something that happens a single time?

Answer: Once

5. What is a word that means above or higher than something else?

Answer: Over

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Words that Start with O

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Liam Daniel

At 7ESL, we use advanced AI to help people learn English. Our tools and resources make it easier to speak and write well, supporting learners at every level.