Leaving off ねえちゃん
Vocabulary Explanation: Honorifics

Conan needs to investigate a bomb set to go off on the train, but being a child restricts his ability to move around and gather information. He decides he needs to reveal his true self to Ran, but when he addresses her as simply “Ran”, she corrects him to add “ねえちゃん” to her name.
- 蘭:
- 「ダメよ。年上
( の人( 呼( び捨( てにしちゃー。」- “That's no good. You shouldn't call older people by their first name alone.”
- Literal: “That's no good. You shouldn't address an older person without a title or honorific.”
- “That's no good. You shouldn't call older people by their first name alone.”
Key Points
1呼( び捨( て = addressing someone without a title or honorific
- In this scene, Conan has called her simply 蘭
( instead of 蘭( ねえちゃん. That is the 呼( び捨( て she objects to. - The English translation renders the idea as “by their first name alone”; the key issue is leaving off the expected form of address, not the use of a first name by itself in every context.
2The object marker を is omitted
- The fuller phrase is 年上
( の人( を 呼( び捨( てにする, “to address an older person without a title”. - Dropping を is common in casual speech, so 年上
( の人( runs directly into 呼( び捨( て here.
3しちゃー is a casual form of しては
- 呼
( び捨( てにしては contracts to 呼( び捨( てにしちゃ, with ー showing that the final vowel is drawn out. - The warning can be understood in regular order as 年上
( の人( を 呼( び捨( てにしちゃダメよ. 蘭( puts ダメよ first, then states what Conan must not do.
4ねえちゃん is a familiar way to address an older girl
- It literally relates to “older sister”, but a child can also use it for a familiar older girl who is not his sister. 蘭
( expects child-aged Conan to address her this way.
名探偵コナン © its respective creators. It is used here for educational commentary.