Meaning of tiens in french

from the verb 'tenir' (to hold)

tu tiens ... = you are holding ...

tiens ! = take that!

si tu y tiens ... = if you really want it ...

possessive: (with the feminine and plural forms)

le mien, la mienne, les miens, les miennes = mine

le tien, la tienne, les tiens, les tiennes = your