Sentence:  She 'd found it by luck most likely but she had n't said anything and we did n't know how long ago it 'd been or how <WSD>many</WSD> other ones she 'd found , saying nothing . 
Meaning of the word marked with <WSD> tags:  a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'; amounting to a large but indefinite number