Words starting with O that end in S

1. A person, especially a large male, who is clumsy or a simpleton.

   Ouch! You dropped that box on my

1. A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically

1. a large tree which bears acorns and typically has lobed deciduous leaves. Oaks are dominant

noun

A large, greatly elongated, type of fish of the family Regalecidae.

noun

A device attached to the gunwale of a rowboat to hold the oars in place while rowing.

1. A type of lever used to propel a boat, having a flat blade at one end and a handle at the other,

abbreviation

Organization of American States.