okulum
Okulum is the Turkish word meaning "my school." It is formed by the noun okul (school) plus the first-person singular possessive suffix -um. Turkish is an agglutinative language with vowel harmony, so the exact form of the possessive suffix changes to -im, -ım, -um, or -üm depending on the stem’s vowels. For okul, the last vowel is u, so the suffix is -um, yielding okulum. The phrase can function as a nominal phrase in subject or predicate position; possession can also be expressed with the full pronoun benim as in benim okulum, though okulum is commonly used without the pronoun.
Usage and examples can illustrate how the form works in sentences. Okulum çok güzel means “My school
See also: Turkish grammar, possessive suffixes, vowel harmony, Turkish pronouns.