plural of old college try

Third-person singular simple present indicative form of try one's luck

Of a mobile telephone: having a choice of three operating frequencies, allowing it to be used in Europe and North America.

Well-established and tested; known to work or succeed based on extensive experience.

Alternative form of triunity

simple past tense and past participle of try out

Having three times the focus. / Having three foci or goals.

three-quarter(s)

Alternative form of trilevel

plural of tri-tip