Sentence:  The Symposium , which was jointly sponsored by the American Institute of Physics , the Instrument Society of America , and the National Bureau of Standards , attracted nearly one thousand registrants , including <WSD>many</WSD> from abroad . 
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