caveman的意思是：穴居人；野蠻的人；粗野的人。
穴居人是指20萬年前到4萬年前，起源於歐洲、居住在歐亞大陸上的幾種近似於現代人的、具有高等智慧和社會性的靈長類生物。因其化石多發現於歐亞大陸山脈和谷底的洞穴中而得名。穴居人的歷史貫穿整個冰河時期，但隨著現代人類的足跡進入歐亞大陸，穴居人卻從地球上神秘消失了。
最著名的穴居人是發現於德國尼安德特河谷的尼安德特人，其他還有丹尼索瓦人等。部分學者錯誤地將穴居人等同於尼安德特人，其實在20萬年前的歐洲和西伯利亞、還有其他與尼安德特人顯著不同的人類近親存在。除了尼安德特人外，其他穴居人都屬於人類發展進化當中的直立人階段。而尼安德特人是典型的早期智人代表。
caveman例句：
1、Scientists discovered what they claimed to be the first known gay caveman; others said he was neither gay nor a caveman.
科學家發現了他們認作是首例的同性戀洞穴人；其他人說他既不是同性戀也不是洞穴人。
2、In other words, the term "caveman" is a bit misleading, since our stone age ancestors did not set up permanent homes in caves.
換句話說，“山洞人”這壹說法有壹點誤導人們。因為我們石器時代的祖先並沒有在洞穴建立永久的住所。
3、It showed a caveman trying to use a pterodactyl for an express delivery, only to watch it be gobbled up on take-off by a tyrannosaur.
廣告中，壹個洞穴人設法讓翼手龍快遞包裹，卻眼睜睜地看著它剛壹起飛就被霸王龍壹口吞下。
4、Morgan: You know, people have been wondering about how the universe began probably since the caveman, right.
摩根：人們可能從穴居起就開始猜測宇宙是怎麼開始的。
5、A U. S. News and World Report said the regime, otherwise known as the Caveman diet, would 'likely disappoint. . .
壹個美國新聞和世界報道說這種被稱為穴居人飲食的飲食結構，很可能會令人失望……
6、When my teacher handed it to me, Iturned it over to see that he had drawn a caveman shooting arrows at mydinosaur.
卷子判完以後，我拿過來壹看，老師畫了壹個原始人，用箭射死了它。
7、Though a caveman bachelor may have had no problem finding a date for Saturday night, his existence was far from ideal.
雖然男性山頂洞人在周末的晚上找壹個約會女友絕不是個問題，但他的生存狀況遠非如此理想化。
8、Organizer said the weeklong "performance" by the woman and man aims to attract interest in the play, "Caveman, " showing in Warsaw.
組織者表示，這場為期壹周的“表演”是為了給當地上映的《穴居人》做宣傳。
9、The caveman wondered out, looked up and saw those dots of lights, and he has no clue.
穴居人走到了野外，擡頭看天，看到星星點點的光，茫然壹片，毫無頭緒。
10、Then we got omni-directional Bluetooth and building-penetrating WiFi, and put all that caveman stuff behind us.
後來我們有了全向的藍牙標準以及能穿透建築物的WiFi設備，淘汰了那些老掉牙的無線通信方式。