签订

签订	qiān dìng	to agree to and sign (a treaty etc)
签	qiān	to sign one's name / to write brief comments on a document / inscribed bamboo stick (variant of 签) / visa
签	qiān	inscribed bamboo stick (used in divination, gambling, drawing lots etc) / small wood sliver / label / tag
订	dìng	to agree / to conclude / to draw up / to subscribe to (a newspaper etc) / to order