Verb

(en verb)

To occur or take place.

*{{quote-magazine, date=2013-06-28, author=(Joris Luyendijk)

, volume=189, issue=3, page=21, magazine=(The Guardian Weekly) , title= Our banks are out of control , passage=Seeing the British establishment struggle with the financial sector is like watching an alcoholic who still resists the idea that something drastic needs to happen for him to turn his life around.}}

To occur unexpectedly, by chance or with a low probability.

To encounter by chance.

* 1860 , , The Marble Faun , ch. 30:

Unexpectedly, in a nook close by the farmhouse, he happened upon a spot where the vintage had actually commenced.

Verb

To change with a specific direction, progress.

(ambitransitive) To progress through a sequence of stages.

* Owen

All insects acquire the jointed legs before the wings are fully developed .

To advance; to further; to promote the growth of.

* Jowett (Thucyd)

We must develop our own resources to the utmost.

To create.

* {{quote-magazine, year=2013, month=July-August, author= Catherine Clabby

, magazine=(American Scientist), title= Focus on Everything , passage=Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus.

To bring out images latent in photographic film.

To acquire something usually over a period of time.

(chess) To place one's pieces actively.

(snooker, pool) To cause a ball to become more open and available to be played on later. Usually by moving it away from the cushion, or by opening a pack.

(math) To change the form of (an algebraic expression, etc.) by executing certain indicated operations without changing the value.