tightly tightly /ˈtaɪtli/

adverb

1. () In a tight or constricted manner  ( tightly )
   in a tight or constricted manner
    A tightly packed pub
   a tightly packed pub
   
2. () Securely fixed or fastened  ( tightly )
   securely fixed or fastened
    The window was tightly sealed
   the window was tightly sealed