This is the 2729th most frequent Polish word.
doświadczeniem
"Doświadczeniem" means "experience" (instrumental case) in English.
In this sentence, "doświadczenie" refers to accumulated practical knowledge and skills acquired over time through teaching English.
Posiadam wieloletnie doświadczenie w nauczaniu języka angielskiego.
I have many years of experience in teaching English.
Here, "doświadczenie" conveys an event or occurrence that made a significant impression.
Wyjazd za granicę był dla mnie niezwykłym doświadczeniem.
Traveling abroad was an extraordinary experience for me.
In this usage, "doświadczenie" is used metaphorically to describe the enhancement of one's skills or knowledge through undertaking a task.