English Dictionary

Situated above the topmast and below the royal mast; designatb, or pertaining to, the third spars in order from the deck; as, the topgallant mast, yards, braces, and the like. See Illustration of Ship.
Source : opted (160202)  - auto

Fig.: Highest; elevated; splendid.
Source : opted (160203)  - auto

A topgallant mast or sail.
Source : opted (160204)  - auto

Fig.: Anything elevated or splendid.
Source : opted (160205)  - auto