1.NounA chance for advancement, progress or profit.
"seize the opportunity; take an opportunity; missed opportunity; The world is full of opportunities and it's up to me to see them and pursue them.; the opportunity came and went; You'll get a second opportunity if you miss this one."
2.NounA favorable circumstance or occasion.
"Having a holiday is a great opportunity to relax."
3.NounOpportuneness.
"The Court questioned the opportunity of introducing these measures in such an uncertain economic climate."