top·gal·lant
| \ (ˌ)täp-ˈga-lənt
, tə-ˈga-\
: of, relating to, or being a part next above the topmast and below the royal mast
topgallant sails the topgallant mast
1
archaic
: the topmost point : summit
the high topgallant of my joy— William Shakespeare
2
: a topgallant mast or sail