1 a move

2 an action

3 in one move

4 at a stroke

5 in one go

1 round

2 lump

3 ball

4 to roll into a ball

5 to gather

6 regiment

7 group

8 society

9 classifier for a lump or a soft mass: wad (of paper), ball (of wool), cloud (of smoke)

1 team

1 carefully chosen

2 handpicked

3 best of the bunch

4 choice (product)

5 concentration (mining)

6 to concentrate

7 to winnow

1 to select on the basis of a vote or consensus

1 to keep on the right side of everyone (idiom)

2 warm and affable

1 one move, two gains (idiom); two birds with one stone

1 innumerable (idiom)

1 to do more than is required (idiom); superfluous

2 gilding the lily

1 many things waiting to be done (idiom)

2 a thousand things to do