Tasawwur means in english

Have you heard this word many times in our Bollywood songs or any gazals ,qawwali 
And in any poems 
And not know the meaning of this word ,don't need to worry here m going to explain exact meaning of it with example

Tasawwur - imagination

It means to an imagination a vision in dream

Exmple in song -

Tere tasawwur me dooba hua he tanhaiyon ka shamaa (the line is from song kola laka velari 

means - Your imagination flows on me whenever. I feel lonely

and the the very famous line of the song 

HUMARI GAZAL HE TASSAWWUR TUMAHARA( line from song bahut pyar karte hain from film saaajan) SEE FULL LYRICS BAHUT PYAR KARTE HAIN

means -our poetry is just your imagination