1. apprehension, discernment, savvy, understanding

the cognitive condition of someone who understands

Example Sentences:
'he has virtually no understanding of social cause and effect'

• apprehension
• savvy
• understanding

2. appreciation, discernment, perceptiveness, taste

delicate discrimination (especially of aesthetic values)

Example Sentences:
'arrogance and lack of taste contributed to his rapid success'
'to ask at that particular time was the ultimate in bad taste'

• appreciation
• perceptiveness
• taste

3. discernment, perceptiveness

perception of that which is obscure

• perceptiveness

4. discernment, judgement, judgment, sagaciousness, sagacity

the mental ability to understand and discriminate between relations

• judgement
• judgment
• sagaciousness
• sagacity

5. discernment, discretion

the trait of judging wisely and objectively

Example Sentences:
'a man of discernment'

• discretion