1group 
/ˈgru:p/ noun
plural groups /ˈgru:p/ noun [count] 1 a : a number of people or things that are together or in the same place
▪ It'll be easier if we go there as a group. ▪ She presented the idea to the group. ▪ We like to let these students work in groups whenever possible. — often + of ▪ A large group of people were waiting for him at the airport. ▪ a group of tourists ▪ a small group of islands ◊In British English group is used with both singular and plural verbs.
▪ A large group was/were waiting for him.
b : a number of people who are connected by some shared activity, interest, or quality
▪ She belongs to an environmental/youth group. ▪ ethnic/religious groups ▪ She joined a discussion group. ▪ A select group of scientists has been invited to the conference. ▪ The disease was seen in all age groups. [=groups made up of people who are the same age] ▪ a group discussion [=a discussion involving a group of people] — see also focus group, interest group, newsgroup, pressure group, support group
c : a number of things that are related in some way
▪ the four food groups ▪ a group of languages 2 : a number of musicians who play together regularly
▪ a rock/musical group [=band]
▪ It'll be easier if we go there as a group. ▪ She presented the idea to the group. ▪ We like to let these students work in groups whenever possible. — often + of ▪ A large group of people were waiting for him at the airport. ▪ a group of tourists ▪ a small group of islands ◊In British English group is used with both singular and plural verbs.
▪ A large group was/were waiting for him.
b : a number of people who are connected by some shared activity, interest, or quality
▪ She belongs to an environmental/youth group. ▪ ethnic/religious groups ▪ She joined a discussion group. ▪ A select group of scientists has been invited to the conference. ▪ The disease was seen in all age groups. [=groups made up of people who are the same age] ▪ a group discussion [=a discussion involving a group of people] — see also focus group, interest group, newsgroup, pressure group, support group
c : a number of things that are related in some way
▪ the four food groups ▪ a group of languages
▪ a rock/musical group [=band]
