Merriam-Webster Collegiate Dictionary - nothing

 I. pronoun  Etymology: Middle English, from Old English nan thing, nathing, from nan no + thing thing — more at none  Date: before 12th century  1. not any thing ; no thing leaves ~ to the imagination  2. no part  3. one of no interest, value, or consequence they mean ~ to me  II. adverb  Date: 12th century not at all ; in no degree  III. noun  Date: 1535  1.  a. something that does not exist  b. the absence of all magnitude or quantity; also zero 1a  c. ~ness, nonexistence  2. someone or something of no or slight value or size  3. a light, playful, or frivolous remark — usually used in plural whispered sweet ~s  IV. adjective  Date: 1611 of no account ; worthless