1the action of writing one’s signature on an official document:the signing of the Anglo-French agreement to build Concorde
the action of recruiting someone, especially to a professional sports team or record company:the signing of overseas players
[count noun]British a person who has recently been recruited, especially to join a professional sports team or record company:Manchester United’s latest signing
[count noun] an event in a bookshop or other place at which an author signs a number of books to gain publicity and sales:Jeffrey Archer was doing a book signing
2sign language:most special schools use some form of signing
3the provision of signs in a street or other place:emergency signing will guide diverted trafficthe shop’s layout and shelf signing are excellent
signing in other Oxford dictionaries
Definition of signing in the US English dictionary