1) An area where people live 2) Ireland site used for housing 3) Of housing 4) Suitable for habitation 1) Urbanized 
• (a.) Residing; residentiary. • (a.) Of or pertaining to a residence or residents; as, residential trade.
A domestic building or where people reside
At Funky Dragon, a residential means going away for the weekend with other young people to join in on activities and take forward the work we do.
suitable for or occupied by private houses
Res`i·den''tial adjective 1. Of or pertaining to a residence or residents; as, residential trade. 2. Residing; residentiary. [ R.]
[adj] - of or relating to or connected with residence 2. [adj] - used or designed for residence or limited to residences
(Lighting) A residential development, or a mixture of residential and small commercial establishments, characterized by few pedestrians during nighttime hours. This definition includes area with single-family homes, townhouses, and/or small apartment buildings.
adjective used or designed for residence or limited to residences; `a residential hotel`; `a residential quarter`; `a residential college`; `residential zoning`