A piece of jewellery like a small crown, worn on the top or front of the head. It is usually a curved band, often silver or gold with jewels set in it, and it is open at the back rather than a full circle — that is what makes it a tiara rather than a crown.

A piece of jewellery like a small crown一種像小皇冠的珠寶, worn on the top or front of the head戴在頭頂或額前。It is usually a curved band通常是一條弧形的帶狀物, often silver or gold with jewels set in it常常是銀色或金色，鑲著寶石, and it is open at the back rather than a full circle後面是開口的，不是完整一圈 — that is what makes it a tiara rather than a crown這就是它是 tiara 而不是 crown（皇冠）的原因。

It goes with very formal, very grand occasions: royal weddings, state dinners, old-fashioned high-society balls. In real life today, only royal families and the very rich own real ones; most tiaras you actually see are cheap plastic or glass ones — worn by brides, by beauty pageant winners, by little girls playing princess, or by someone at a birthday party or a hen party wearing one as a joke.

It goes with very formal, very grand occasions它適合非常正式、非常盛大的場合: royal weddings, state dinners, old-fashioned high-society balls皇室婚禮、國宴、老派的上流社會舞會。In real life today, only royal families and the very rich own real ones在現實生活裡，今天只有王室和超級有錢人才擁有真正的; most tiaras you actually see are cheap plastic or glass ones你實際看到的大多數 tiara 都是便宜的塑膠或玻璃製品 — worn by brides, by beauty pageant winners, by little girls playing princess新娘、選美冠軍、玩扮公主遊戲的小女孩會戴, or by someone at a birthday party or a hen party wearing one as a joke或是生日派對、單身派對上有人開玩笑戴著玩。

So the word carries two flavours at once: genuine royal grandeur, and playful dressing-up. English also uses it lightly in phrases about acting grand — someone "putting on a tiara" can suggest they think rather too much of themselves.

So the word carries two flavours at once所以這個字同時帶著兩種味道: genuine royal grandeur, and playful dressing-up一種是真正的皇室氣派，一種是好玩的裝扮。English also uses it lightly in phrases about acting grand英文也會輕鬆地用它來講一個人擺架子 — someone 'putting on a tiara' can suggest they think rather too much of themselves「putting on a tiara」可以暗示這個人太把自己當一回事了。

The word is countable: a tiara, two tiaras.

The word is countable這個字是可數名詞: a tiara, two tiaras一頂 tiara，兩頂 tiaras。