?英語新詞是指在英語語言中新近出現的詞匯，通常是由于社會發展、科技進步或文化交流等原因而產生的。這些新詞既可以是全新的詞匯，也可以是對現有詞匯的重新組合或衍生。

用法：

英語新詞通常被用作日常交流中的簡潔表達，特別是在社交媒體和網絡文化中。它們往往具有時尚、潮流和創意性，能夠準確地表達當下的社會現象和文化趨勢。

例句1-5句且中英對照：

1. "Selfie" is a popular English neologism that refers to a self-portrait photograph taken with a smartphone.

“自拍”是一個流行的英語新詞，指用智能手機拍攝的自拍照片。

2. "FOMO" stands for "fear of missing out", which describes the anxiety of being excluded from an event or experience.

“FOMO”“害怕錯過”，形容被排除在某個或經歷之外所產生的焦慮。

3. "Meme" is a humorous image, video, or piece of text that is copied and spread rapidly by Internet users.

“Meme”是一種幽默的圖片、視頻或文字，在互聯網用戶之間迅速傳播和復制。

4. "Bromance" is a close platonic relationship between two men, often characterized by emotional intimacy and shared interests.

“Bromance”是兩個男性之間密切的純友誼關系，通常具有情感親密和共同興趣的特點。

5. "Nomophobia" is the fear of being without one's mobile phone or being unable to use it.

“Nomophobia”是指害怕沒有手機或無法使用手機的恐懼。

同義詞及用法：

1. Neologism: a newly coined word or expression, often used to describe a new concept or phenomenon.

新詞：指新近創造的詞匯或表達方式，通常用于描述新概念或現象。

2. Slang: informal language that is used among particular groups of people and is often not considered appropriate in formal situations.

俚語：指特定群體使用的非正式語言，通常在正式場合被認為不合適。

3. Jargon: specialized technical terminology used by a particular group or profession.

術語：指特定群體或職業使用的專業術語。

4. Coinage: the invention of new words or phrases.

創詞：指發明新詞或短語。

5. Buzzword: a word or phrase that becomes fashionable and popular, often used in marketing or media contexts.

流行詞：指在市場營銷或媒體中變得時尚和流行的詞匯。