n
[U]
the act of writing your name at the end of document to show that you agree with it
　The formal signing will take place on April 9th.
signing of
　the signing of the ceasefire agreement
a)[C]BrE
someone who has just signed a contract to join a sports team or work with a record company
　New signing, Mark Brown, scored three goals in his first match.
b)[U]
when a sports team or record company prepares a contract which someone then signs to say that they will join the team or work with the company
signing of
　Birmingham City have completed the signing of Doug Bell from Shrewsbury Town.
[U]
the use of sign language to communicate to or between people who cannot hear well