Preposition is a word which expresses relation of noun or pronoun to other words in the sentence. For example:
. ڪِتابُ ميزَ تي آهي
kitābu meza te āhe.
The book is on the table.
In the above sentence the word (تي) 'on', expresses the relation between noun (ڪِتابُ) 'book' and noun (ميزَ) , 'table'.
Note: For more prepositions in Sindhi, see Grammatical Vocabulary in Vocabulary Section