Meaning : Supply with information on a specific topic.
Example :
He filled me in on the latest developments.
Meaning : Represent the effect of shade or shadow on.
Synonyms : shade
Meaning : Be a substitute.
Example :
The young teacher had to substitute for the sick colleague.
The skim milk substitutes for cream--we are on a strict diet.
Synonyms : stand in, sub, substitute
Fill in meaning in Bengali (Bangla).