a, o, g, l, n, t, i, v are letters that make 'invigilation'
lat, la, ti, at, Gi, on, vi, il, GI, in, vigil, VI, IL, IN, LA, NV, Gila, Io, ion, At, In, La, Ti, Ig are words within 'invigilation'
1 possible definitions for 'invigilation'
Under this definition, invigilation is a noun and has the following properties:
'invigilation' can be a type of supervision, supervising, superintendence, oversight.
'invigilation' can be a region of United Kingdom, UK, U.K., Britain, United Kingdom of Great Britain and Northern Ireland, Great Britain
invigilate, proctor are derivatives of 'invigilation'.