In English, we use prepositions. They are words that help us understand the relationship between two things. For example, we could have two items a book and an apple. Where are they in relation to one another? The apple could be "on" the table, "under" the table, or "beside" the table. The words, "on", "under" and "beside" tell us about location and act as prepositions.
The prefix "pre" tells us something goes before.
The prefix "post" tells us something goes after.
So in English, we put these location words before the noun, and we call them "prepositions", and in Hindi, we put them after the noun, so they are called "postpositions."
English word order is:
preposition - noun
"on" - "a table"
Hindi word order is:
noun - postposition
"a table" - "on"
एक मेज पर - ek mej par
Postposition Words, Adverbs and Location
How to use the word "pe" or in English "at"
How to use the word "ko" or in English, "to"