English: watching brief
Welsh: briff gwylio
Subject: Cyfraith
English definition: Law. Brief held by a barrister to follow a case on behalf of a client who is not directly involved. Also generally an interest in something in which one is not directly concerned.
Welsh definition: Estyniad o'r ystyr cyfreithiol yw'r defnydd cyffredinol - gellir rhoi dyfynodau o'i gwmpas i nodi hynny.