Friendship

collection

a group of products designed and sold at the same time, usually for a particular season

mantain

o keep something at the same quality, level, amount, etc.

stable

not easily changed

close

knowing someone very well and liking them a lot, usually indicates a strong emotional connection with a person

trust

to believe that someone or something is correct, honest, reliable, etc.

partner

each member of a partnership, marriege or long-term unmarried couple

average

a standard or level that is considered to be typical or usual:

survey

the collection of data by having people answer a series of questions

release

to allow something to be shown in public or to be available for use:

lenght

Distance between two points