1 private

2 personal

3 interpersonal

4 sb with whom one has a close personal relationship

5 a member of one's clique

1 private correspondence

2 personal letter

3 (computing) personal message (PM)

4 to message sb

1 selfish

2 selfishness

1 selfless

2 unselfish

3 disinterested

4 altruistic

1 personal

2 private

3 selfish

1 to use one's position for personal gain (idiom)

1 official authority used for private interests (idiom); to attain private ends by abusing public position

1 for the common good and forgetting personal interests (idiom); to behave altruistically

2 selfless

1 to take advantage of official post for personal revenge (idiom)

1 public and private interests working together (idiom)