This is the 3373rd most frequent Polish word.
wspomnieć
"To mention" or "to recall briefly."
In this sentence, 'wspomnieć' is used to mean 'to mention' or 'to bring up' in a conversation.
On wspomniał o swoich wakacjach na spotkaniu.
He mentioned his holidays during the meeting.
Here, 'wspomnieć' conveys the meaning of 'to recall' or 'to remember' something that occurred in the past.
Nie mogę wspomnieć sobie szczegółów tej książki.
I can't recall the details of this book.
In this context, 'wspomnieć' again means 'to mention', but in the written context of a report or formal documentation.