Concordancia Strong's

1) to discern, understand, consider
1a) (Qal)
1a1) to perceive, discern
1a2) to understand, know (with the mind)
1a3) to observe, mark, give heed to, distinguish, consider
1a4) to have discernment, insight, understanding
1b) (Niphal) to be discerning, intelligent, discreet, have understanding
1c) (Hiphil)
1c1) to understand
1c2) to cause to understand, give understanding, teach
1d) (Hithpolel) to show oneself discerning or attentive, consider diligently
1e) (Polel) to teach, instruct
2) (TWOT) prudent, regard