1 result

2 effect

3 efficacy

4 (theater) sound or visual effects

1 effective

2 in effect

3 valid

1 special effect

2 specially good effect

3 especially efficacious

1 duet (in music)

1 to accompany (musically)

1 subordinates follow the example of their superiors (idiom)

1 in order to warn against following bad examples (idiom)

2 as a warning to others

1 first decapitate then present your trophy (idiom); act first, report later

1 to do sth and not report the fact (idiom)

1 perfect finish (idiom)