Nothing  —n. 1 not anything (nothing has been done). 2 no thing (often foll. By compl.: i see nothing that i want). 3 person or thing of no importance. 4 non-existence; what does not exist. 5 no amount; nought. —adv. Not at all, in no way.  be (or have) nothing to do with 1 have no connection with. 2 not be involved or associated with. For nothing 1 at no cost. 2 to no purpose. Have nothing on 1 be naked. 2 have no engagements. Nothing doing colloq. 1 no prospect of success or agreement. 2 i refuse. [old english: related to *no1, *thing]