IPA: /ˈpɛn.ə.treɪt/
KK: /ˈpɛnəˌtreɪt/
To enter or pass through something, often with force or effort.
The sunlight began to penetrate the thick forest canopy.
Past: penetrated
Past Participle: penetrated
To enter or pass through something, often in a way that allows influence or understanding; to affect deeply or to spread throughout.
The sunlight began to penetrate the thick clouds, brightening the day.
Past: penetrated
Past Participle: penetrated
Penetrate → It is formed from "penetrare" (meaning to enter or pierce) which comes from the combination of "per-" (meaning through) and "nat-" (meaning to go or to be born). The word "penetrate" means to go through or pierce into something.
Think of something going 'through' ('per-') and 'entering' ('nat-') — that's why penetrate means to enter or pierce into something.