Third-person singular simple present indicative form of group.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "groups" in a sentence
"_Othello_, or _Antony and Cleopatra_ can be arranged in opposed groups;  and no doubt there is a conflict; and yet it seems misleading to describe this conflict as one _between these groups_."
"Although it appears to be well settled that, as a rule, the writing, when in lines, is to be read from left to right -- the lines following each other downward and the columns to be read from the top downward, but the groups, as before explained, to be read separately -- it does not follow that the _groups_ succeed one another from left to right."
"Slide 27: Groups - Types of groups Permanent groups* Remains unless user removes All Custom Smart Endnote References groups groups Web Cleared after Temp groups* exiting EndNote Imported Online Search Full text Duplicate References Search results References * Definition differs from EndNote Manual"