This is the 586th most frequent Czech word.
viděl
"Saw" (past tense of "see").
The word 'viděl' here is the masculine singular past tense of the verb 'vidět', meaning 'to see'. It indicates an action of seeing performed by the speaker in the past tense.
Včera jsem viděl krásný západ slunce.
Yesterday I saw a beautiful sunset.
In this sentence, 'viděl' is used in a complex sentence structure to describe the realization of observing someone's action, implying a mental impression or understanding.
Viděl jsem, že se na mě díváš.
I saw that you were looking at me.
Here, 'viděl' emphasizes direct observation, contrasting with a lack of knowledge about the fact in question.