Meaning : An assemblage of parts or details (as in a work of art) considered as forming a whole.
Synonyms : ensemble
Meaning : A total impression or effect of something made up of individual parts.
Meaning : With everything considered (and neglecting details).
Example :
Altogether, I'm sorry it happened.
All in all, it's not so bad.
Synonyms : all in all, altogether, on the whole
Tout ensemble meaning in Bengali (Bangla).