If a king or queen is enthroned, people hold a ceremony to put them on the throne and show that their rule is starting. The picture at the centre is the seat: they sit where the ruler sits, in front of witnesses, often in a palace or a great church. This is a formal, news-and-history word; you will almost never hear it in a shop or a family chat. Though actually, churches use it too — they can enthrone a church leader by seating that person in a special chair to show the new job has begun. People also stretch it in a grand or joking way (“enthroned as the star of the night”), but that is play, not the real ceremony. It is not quite the same as putting a crown on someone’s head: a crown goes on the head; a throne is the seat. Many real ceremonies do both, which is why the two get mixed.

登基、即位。台灣講皇帝或國王開始統治，多用「登基」。「加冕」是戴上王冠，跟坐上王位不是同一件事，雖然典禮常常一起做。