An occurrence or condition of affairs which brings with it some unlooked-for event; that which incidentally brings to pass an event, without being its efficient cause or sufficient reason; accidental or incidental cause
If something happens on occasion, it happens sometimes, but not very often. He translated not only from the French but also, on occasion, from the Polish. = occasionally
reason; "there was no occasion for complaint" an opportunity to do something; "there was never an occasion for her to demonstrate her skill" the time of a particular event; "on the occasion of his 60th birthday
An occasion is an important event, ceremony, or celebration. Taking her with me on official occasions has been a challenge It will be a unique family occasion
If you say that someone rose to the occasion, you mean that they did what was necessary to successfully overcome a difficult situation. Inverness, however, rose to the occasion in the second half, producing some of the best football they have played for some time. to cause something