The Word is:”that”
that
/ðat/
pronoun
pronoun: that; pronoun: those
1. used to identify a specific person or thing observed or heard by the speaker.
“that’s his wife over there”
“this is stronger than that”
2. referring to a specific thing previously mentioned, known, or understood.
“that’s a good idea”
3. used in singling out someone or something and ascribing a distinctive feature to them.
“it is part of human nature to be attracted to that which is aesthetically pleasing”
4. British informal
expressing strong agreement with a description just given.
“‘He’s a fussy man.’ ‘He is that.’”
5. used to introduce a defining clause, especially one essential to identification:
“the woman that owns the place”
instead of ‘when’ after an expression of time.
“the year that Anna was born”
determiner
determiner: that; determiner: those
1. used to identify a specific person or thing observed or heard by the speaker.
“look at that chap there”
2. referring to a specific thing previously mentioned, known, or understood.
“he lived in Mysore at that time”
3. used in singling out someone or something and ascribing a distinctive feature to them.
“I have always envied those people who make their own bread”
4. referring to a specific person or thing assumed as understood or familiar to the person being addressed.
“where is that son of yours?”
adverb
adverb: that
1. to such a degree; so.
“I wouldn’t go that far”
“it was that big, perhaps even bigger”
very.
“I couldn’t get out of the house fast enough, I was that embarrassed!”
conjunction
conjunction: that
/ðat,ðət/
1. introducing a subordinate clause expressing a statement or hypothesis.
“she said that she was satisfied”
“he seemed pleased that I wanted to continue”
“she was so tired that she couldn’t think”
“we pray that the coming year may be a year of peace”
2. literary
expressing a wish or regret.
“oh that he could be restored to health”
Source credit: Google