listen and pay attention; "Listen to your father"; "We must hear the expert before we make a decision"
23
perceive
to become aware of through the senses; "I could perceive the ship coming over the horizon"
8
come to know
[erfahren]
4
notice
notice or perceive; "She noted that someone was following her"
1
perceive
become conscious of; "She finally perceived the futility of her protest"
1
detect
discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint"