1
the inner sanctum of [place]
inner sanctum 常指最隐秘或最神圣的地方，也可用于比喻机构的核心区域。
The altar stands in the inner sanctum of the temple.
祭坛位于寺庙的内殿。
私室；密室
sancta — plural of sanctum
先理解核心含义，再看它在真实句子里的用法。
私室；密室
a place of inviolable privacy
The altar stands in the inner sanctum of the temple.
祭坛位于寺庙的内殿。
指不受打扰的私密场所，而非宗教圣所。
僻静之处,如至圣所；神圣或私人场所；私人静修处或工作室。
A place set apart, as with a sanctum sanctorum; a sacred or private place; a private retreat or workroom.
Grandpa's workshop is his sanctum, and no one disturbs him there.
爷爷的工作室是他的私密空间，在那儿没人打扰他。
I need a quiet sanctum where I can read without interruptions.
我需要一个安静的私密角落，可以不受打扰地读书。
She turned the empty attic into her personal sanctum for painting.
她把空阁楼变成了她绘画的私人天地。
inner sanctum 常指最隐秘或最神圣的地方，也可用于比喻机构的核心区域。
The altar stands in the inner sanctum of the temple.
祭坛位于寺庙的内殿。
private sanctum 强调只属于个人的私密空间。
She uses the attic as her private sanctum.
她把阁楼用作自己的私密空间。
retreat to 常与表示地点的名词连用，含“退避、躲开”的意思。
After the argument, he retreated to his sanctum.
争吵之后，他回到了自己的密室。
Not this
The ritual is sanctum.
Use this
The ritual is sacred.
sanctum 是名词，不是形容词；表示“神圣的”这一属性应使用形容词 sacred。原句把 sanctum 当作表语形容词，语法不对。
Not this
The government set up a bird sanctum to protect rare species.
Use this
The government set up a bird sanctuary to protect rare species.
sanctum 的词典义是“a place of inviolable privacy”（不容侵犯的私密之处），并不表示动物保护区；表达保护区应使用 sanctuary（庇护所、保护区）。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
内室；私密空间
He led me into his inner sanctum, where he kept his rare book collection.
他带我进入他的内室，那里存放着他收藏的珍本图书。
私人密室
The attic became her private sanctum, away from the rest of the family.
阁楼变成了她的私人密室，远离家中其他人。
至圣所
Only the high priest could enter the sanctum sanctorum of the ancient temple.
只有大祭司才能进入古神庙的至圣所。
安静的私室；宁静避风港
The small reading room was a quiet sanctum in the noisy city.
这间小阅览室是嘈杂城市中一处安静的私室。
私密场所；核心密室
The boss's office was an inner sanctum, and no one dared enter without permission.
老板的办公室是个私密之地，未经允许谁也不敢进去。
至圣所；最私密之处
He retreated to his sanctum sanctorum, the study at the top of the house, to write.
他退回到自己的至圣所——家中顶层的书房——去写作。
至圣所
In the Marvel films, Doctor Strange protects the Sanctum Sanctorum, his magical home in New York.
在漫威电影中，奇异博士守护着位于纽约的魔法住所“至圣所”。
Use sancta naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 sanctuary（圣所）：sanctum 是神圣不可侵犯的私密空间。
语域：formal 常见场景：formal and literary writing、descriptions of a private room or study sanctum 表示“私室、密室”时通常用于正式或文学性语境，带有神圣不可侵犯的意味；在日常口语中较少使用，多出现在书面描述或强调隐私的场合。
以上单词均不与 sanctum 完全押韵。sanction、sanctify、sanctuary 共用 sanct 拼写，但发音各异；dictum、rectum 与 sanctum 同以 -ctum 结尾，且都发 /ktəm/，但重读元音不同；quantum 只有末尾 /təm/ 和拼写 -tum 相近。真正的押韵需要从重读元音 /æ/ 起与 /sæŋktəm/ 一致。
Dictionary facts from ECDICT, WIKTIONARY.