Learner's definition of POETRY
1 : the writings of a poet : poems
I read the poem in a collection of modern poetry.
She's published two books of lyric poetry and a novel.
He found it easiest to express himself in the language of poetry.
He reads/writes poetry.
The bookstore holds a poetry reading [=an event in which people read poems that they have written aloud for a group] every Thursday night.
2 : something that is very beautiful or graceful
poetry in motion
: someone or something that moves in a way that is very graceful or beautiful