omen
It could be opulence or ostentation.
It is occurrence.
omnipotent- meaning all powerful, all seeing etc
the word that starts with the letter o isonizalation glad to help
Actually, it starts and ends with "M", but you remove the first "M" and insert an "O" ANYWHERE in the word, not just replace "M" with "O"
Another word for water that starts with the letter 'O' is oxygen dihydrogen.
o my god
Lions can be described as overpowering. The word starts with the letter o.
Ornaments.
Operations
Ornaments
A seven (7) letter word that starts with M and ends with O: memento