Ajax
noun
°(computing) A group of techniques for creating interactive web applications, in which applications can retrieve data from the server asynchronously in the background without interfering with the display and behavior of the existing page.
"February 2005: Jesse James Garrett, Ajax: A New Approach to Web Applications"
°either of two heroes of the Trojan War.

just
adjective
°factually fair; correct; proper.
"It is a just assessment of the facts."
"It looks like a just solution at first glance."
verb
°Only, simply, merely.
°Moments ago, recently.
"They just left, but you may leave a message at the desk."
noun
synonyms: fair, upright, righteous, equitable more» , merely, simply

learn
verb
°To acquire, or attempt to acquire knowledge or an ability to do something.
°To attend a course or other educational activity.
synonyms: study