An 'Arsenal' Is a collection of weapons
At collection of stamps is refered to as a stamp collection. They are frequently kept in albums. Philately is the name for the study and collection of stamps.
Units will coordinate with the LRS and/or the SFS for the collection and turn-in of issued weapons on R-Day for returning groups and individuals.
May be a number of terms that describe this; however, "weapons cache" seems to sum it up pretty well.
An armoury is a place where arms are made or kept, or a collection of weapons and materiel.
a collection of fish is called a school of fish
it is called a range of mountains
A collection of sayings is called a "proverb" or "aphorism."
A collection of opinions is called a "consensus" or a "survey."
A collection of fish is called a school.
Collection of coins is called collection of cons only n there is no specific word for it. It is different from numismatics as numismatics is the systematic study of coins. Mere collection of coins cannot be called as numismatics.
Web page collection called a Website.