(computing) enqueuing

(computing) to enqueue

hedge, fence

(Internet slang) a dead fad; out of fashion; no longer trendy

the first sight of something / something seen for the first time

(mathematics) quod erat demonstrandum (that which was to be proved)

one should start a big project with immediate, practical steps; start small / the person who proposes something should be the first one to take practical steps to implement it

polyene

(video games) encounter / (Internet slang) chance meeting with someone in real life

(video games) to encounter / (Internet slang) to meet with someone by chance in real life