1 to admit

2 to concede

3 to recognize

4 recognition (diplomatic, artistic etc)

5 to acknowledge

1 to believe

2 to think

3 to consider

4 to feel

1 conscientious

2 earnest

3 serious

4 to take seriously

5 to take to heart

1 to know

2 to recognize

3 to be familiar with

4 to get acquainted with sb

5 knowledge

6 understanding

7 awareness

8 cognition

1 publicly known (to be)

2 accepted (as)

1 not recognizing one's family (idiom); self-centered and not making any allowances for the needs of one's relatives

1 lit. to acknowledge the bandit as one's father (idiom); fig. a complete betrayal

2 to sell oneself to the enemy