Denshi Jisho — Online Japanese dictionary

伸ばす のばす 1: to grow long (beard, hair, etc.);
2: to lengthen; to extend; to stretch;
3: to reach out; to hold out;
4: to straighten; to smooth out;
5: to spread evenly (dough, cream, etc.);
6: to dilute; to thin out;
7: to postpone;
8: to prolong;
9: to strengthen; to develop; to expand
Common word, Godan verb with su ending, Transitive verb 

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