The Word is:”to”
to
/tə,tʊ,tuː/
preposition
preposition: to
1. expressing motion in the direction of (a particular location).
“forty miles to the south of the site”
“a drop in profits from £105 m to around £75 m”
(in telling the time) before (the hour specified).
“it’s five to ten”
2.approaching or reaching (a particular condition).
“smashed to smithereens”
“to her astonishment, he smiled”
3. identifying the person or thing affected by or receiving something.
4.identifying a particular relationship between one person and another.
“made to order”
“my car only does ten miles to the gallon”
indicating the power (exponent) to which a number is raised.
“ten to the minus thirty-three”
5. indicating that two things are attached or linked.
6. concerning or likely to concern (something).
7. used to introduce the second element in a comparison.
8. placed before a debit entry in accounting.
infinitive marker
to: to
1. used with the base form of a verb to indicate that the verb is in the infinitive, in particular:
“I set out to buy food”
“she was left to die”
“I’m sorry to hear that”
“I’d love to go to France this summer”
“a house that people believed to be haunted”
“he was about to sing”
“a chair to sit on”
“the first person to arrive”
2. used without a verb following when the missing verb is clearly understood.
adverb
adverb: to
1. so as to be closed or nearly closed.
Source credit: Google