The word 'there' in 'there is a man' acts as an expletive.
'there is a man' বাক্যে 'there' শব্দটি একটি পাদপূরণকারী শব্দ হিসেবে কাজ করে।
COLLOCATIONS
use an expletive, utter an expletive, deleted expletive
WORD FORMSPlural: expletivesUSAGE NOTES
In linguistics, 'expletive' refers to a word that has no semantic content but is required by syntactic rules (e.g., 'it' in 'it is raining'). In common usage, it almost exclusively refers to profanity.