1 difference

2 discrepancy

3 to differ

4 error

5 to err

6 to make a mistake

1 almost

2 nearly

3 more or less

4 about the same

5 good enough

6 not bad

1 almost

2 nearly

1 double

2 twice

3 simultaneous

4 holding two or more (official) posts at the same time

1 to combine

2 to have both

1 incorporating diverse things (idiom)

2 eclectic

3 all-embracing

1 (idiom) variable

2 uneven

3 irregular

1 uneven and jumbled (idiom); irregular and disorderly

2 in a tangled mess

1 excelling both in morals and studies (idiom); top marks for studies and for behavior (at school)

2 a paragon of virtue and learning

1 poles apart (idiom)

2 as different as can be