Metric Sockets Sets

sockets
(socket) receptacle where something (a pipe or probe or end of a bone) is inserted
Place in or fit with a socket
(socket) a bony hollow into which a structure fits
(socket) a receptacle into which an electric device can be inserted

metric
Metric units, or the metric system
A system or standard of measurement
based on the meter as a standard of measurement; "the metric system"; "metrical equivalents"
metric function: a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
measured: the rhythmic arrangement of syllables
A binary function of a topological space that gives, for any two points of the space, a value equal to the distance between them, or to a value treated as analogous to distance for the purpose of analysis

sets
(set) put: put into a certain place or abstract location; "Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point"
A collection of implements, containers, or other objects customarily used together for a specific purpose
A group or collection of things that belong together, resemble one another, or are usually found together
(set) fit(p): (usually followed by `to' or `for') on the point of or strongly disposed; "in no fit state to continue"; "fit to drop"; "laughing fit to burst"; "she was fit to scream"; "primed for a fight"; "we are set to go at any time"
A group of people with common interests or occupations or of similar social status
(set) a group of things of the same kind that belong together and are so used; "a set of books"; "a set of golf clubs"; "a set of teeth"