['tu:'neim]
adj.
两人签名的

Two-name \Two"-name`\, a. (Banking)
Having or bearing two names; as,

{two-name paper}, that is, negotiable paper on which at least
two persons are severally liable as separate makers, or,
usually, one as maker and one as indorser. [Colloq.]
[Webster 1913 Suppl.]