Dictionary
2 ENTRIES FOUND:

1topside

noun top·side \ˈtäp-ˈsīd\

Definition of TOPSIDE

1
plural :  the top portion of the outer surface of a ship on each side above the waterline
2
:  the highest level of authority
3
:  the upper portion of the ionosphere

First Known Use of TOPSIDE

1815

2topside

adverb or adjective

: on or onto the deck of a ship

Full Definition of TOPSIDE

1
:  to or on the top or surface
2
:  in a position of authority
3
:  on deck

First Known Use of TOPSIDE

1873

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