Local volunteers can join certain groups to contribute their services, and the rules are:

  1. a volunteer must choose one group as the initial group, and he serves in this group most of the time

  2. a volunteer can join multiple non-initial groups according to their interests, but he only serves in those groups in spare time

Now I'd like to find two words to identify the initial group & non-initial group.

How can I express this?

(here's some examples that I don't know if ok)

  1. Primary Group & Secondary Group
  2. Major Group & Minor Group
  3. ....

1 Answer 1


There is a number of ways you can name the groups.

1 would be correct, as the groups are primary and secondary to a certain volunteer, but I don't think 2 is a good option: major and minor suggest size instead of priority, and the fact that the volunteer doesn't consider the second group as his/her main group doesn't make it smaller.

It's important to consider that the names you choose are in relation to the volunteer, rather to the groups themselves.

Some other examples I can think of are:

  1. Main group and secondary groups
  2. Main group and additional groups
  3. Main group and minor groups

Any of those replacing Main with Head or Primary would also be correct.

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