1. The English word starting with o is best a phrase

OMG (Oh my God), hahaha, just kidding

Oedipus complex Oedipus complex

oops, what are I thinking~~~

Entering O in Youdao will bring up many words and phrases~

Over

often

orange

okey

object

occasion

obey

object

obtain

oil

other

Olympic

once

online

only

opinion

operate

oppose

October

option

ordinary

/search?keywords=short o vocabulary wordsamp; media=worksheets

This website also has several documents about words starting with O, divided into levels. From easy to difficult. Hope this helps~

I added this after seeing the question, what is the trademark? I like the word Oxygen, which means oxygen. I think it is quite active and healthy. 2. English words starting with o

on----------------------------------on top

or------------------------or

orange------------- ----------Orange

only------------------------only

our---------------------our

open----------------- ---Open

own-------------------your own