- socSociology or social science.
- sokeA soc (a medieval right to hold a court or to receive fines).
- sokenThe 'resort' (right) of specific farmers to have their grain ground at a specific mill or, inversely, the right of a mill to that custom.
- Eaton SoconA village in St Neots parish, Huntingdonshire district, Cambridgeshire, England (OS grid ref TL165595).
- socageIn the Middle Ages (and chiefly but not exclusively medieval England), a legal system whereby a tenant would pay a rent or do some agricultural work for the landlord.