Noah Webster
Opportunity
OPPORTU'NITY, noun [Latin opportunitas.]
1. Fit or convenient time; a time favorable for the purpose; suitable time combined with other favorable circumstances. Suitableness of time is the predominant signification, but it includes generally circumstances of place and other conveniences adapted to the end desired.
A wise man will make more opportunities than he finds.
I had an opportunity to see the cloud descent.
Neglect no opportunity of doing good.
2. Convenient means. I had an opportunity of sending the letter, or no opportunity to send it. Opportunities rarely occur on frequently offer.