(online gaming, slang) healer who heals random players

online game

(video game) character that responsible for healing party; healer

being online

the highest; the best; supreme; the greatest

to know, be aware of / to learn, acquire, / to be acquainted with, to know (someone) / (colloquial, in the negative) to care in the least about, to be concerned with,

a crossroad, intersection / (by extension) a road, street, way / Short for 辻番 (tsujiban): a type of town-watching guard most commonly found in the Edo period

a place name / a surname

crossroad, intersection

Same as つじ (tsuji) above