· overcast
· overcoat
· overshoes
A few things that start with o and have to do with the winter are oreos to put out for Santa. That's one thing that starts with an o and it has to do with winter but mostly Christmas.
· overcast · overcoat · overshoes
Ocean is something that is blue and starts with an "o."
Overalls!
jello
Ocean.
pie
Ottomon * ocean
Obi
Orangeade
onion
optical lens