treeningul

Treeningul is the adessive (locative) form of the Estonian noun treening, meaning "at the training" or "at practice." It is used to indicate presence at or attendance of a training session, practice, workout, rehearsal, or similar organized activity. As a case form rather than a separate lexeme, treeningul appears in sentences to specify location or participation.

Common usage appears in everyday speech and writing related to sports, fitness, dance, music rehearsals, and workplace training. Example: "Ma olen treeningul" — "I am at training." It can also be used in phrases that describe activities happening during a session, such as "arutati treeningul taktikat" ("they discussed tactics at the training").

The base noun treening is a loanword from English "training" and functions like other Estonian nouns when declined into cases to express various grammatical relations. Treeningul is one of those declined forms and is not typically listed as an independent headword in dictionaries; it is presented under treening. The form is idiomatic in colloquial and formal contexts where indicating attendance or location is required.