Copy and paste Long Dash Symbol (—). Check Alt Codes and learn how to make specific symbols on the keyboard. 1. A long time: This won't take long. 2. Linguistics A long syllable, vowel, or consonant. 3. One who acquires holdings in a security or commodity in expectation of a rise in price. To strongly crave or desire something is to long for it. No matter how healthful your diet is, you'll still occasionally long for chocolate, cookies, and cake. The adjective long describes something that stretches over a large distance. Wide may be used instead of long when referring to a left-to-right horizontal dimension, or to a horizontal dimension shorter than that described as long (for example, a river that is wide and long). LONG definition: having considerable linear extent in space. See examples of long used in a sentence. long, yearn, hanker, pine, hunger, thirst mean to have a strong desire for something. long implies a wishing with one's whole heart and often a striving to attain. yearn suggests an eager, restless, or painful longing. hanker suggests the uneasy promptings of unsatisfied appetite or desire. LONG definition: 1. continuing for a large amount of time: 2. being a distance between two points that is more than…. Learn more. This disambiguation page lists articles associated with the title Long. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. LONG is more than just a job, it’s a path to a rewarding career in a supportive environment with team members who take customer service to heart. When you join LONG, you join a team of the best and brightest to bring innovation and a new level of customer care to the industry. LONG Building Technologies provides building automation, security systems, commercial HVAC service and parts, as well as building analytics.