A string with clips on each end to hold socks together as a pair before placing them in the wash.

(UK, idiomatic, vulgar, colloquial, dismissal) Go away.

Severe social disapproval of a person or behaviour.

A puppet made from a sock placed over a hand. / Synonym of puppet: A person completely controlled by another.

(Wikimedia jargon) To create or use a sock puppet (alternative user account).

A person with an antisocial personality disorder.

cultural anthropology

(cooking) Bread made using sour milk and baking soda as a rising agent, rather than yeast; common in Ireland.

Sodium bicarbonate.

(chemistry) A salt of sodium hydroxide and carbonic acid, NaHCO₃. / This salt used in cooking as a raising agent, as an antacid, a cleaner, etc.