Borusu

Borusu is a Turkish grammatical form derived from boru, meaning pipe. It is the third-person singular possessive form of boru, formed by adding the possessive suffix -si, which aligns with vowel harmony to become -su after a back vowel. The result borusu translates roughly as "its pipe" or, more generally, "the pipe of something," depending on context. In Turkish, possessive suffixes attach to the possessed noun and the possessor is indicated by surrounding context, often through a genitive noun or a demonstrative.

Thus borusu appears in noun phrases referring to a pipe belonging to another noun, such as evin borusu (the house’s pipe) or bunun borusu (this/that thing’s pipe). It is not a standalone lexical item with independent meaning; rather, it functions as a morphological component within larger phrases.

Examples:

- Evin borusu tıkalı. The house’s pipe is clogged.

- Bunun borusu çok eski. Its pipe is very old.

See also: Turkish grammar, possessive suffixes, boru.