Point to a noun near you: この

Mental Model: The Speaker's Territory (The Ko-Domain)

In Japanese, demonstrative words belong to the famous kosoado system (こそあど). The こ series marks the speaker's immediate personal territory:

• The Physical Zone: Objects you are holding, items on your desk, clothes on your body.
• The Spatial Zone: The room, building, or town you are currently inside (この部屋 = this room; この町 = this town).
• The Temporal Zone: Time periods you are currently living through (今週(こんしゅう) = this week; このごろ = these days).

Pronoun vs Adnominal: これ vs この

The most critical distinction for beginner learners is between independent pronouns and adnominal modifiers:

• これ (Independent Pronoun):
• Stands completely alone as a noun.
• Can take case particles immediately: これは, これを, これに.
• Example: これはペンです(これはぺんです): “This is a pen.”
• この (Adnominal Modifier / 連体詞):
• CANNOT stand alone! It requires an immediate noun partner.
• Saying *このは… or *このを… is an immediate grammatical error.
• Example: このペンは私のです(このぺんはわたしのです): “This pen is mine.”

Referring to People Respectfully

In English, you can point across a table and say “This is my manager, Sarah.” In Japanese, using the bare pronoun これ for a person (`*これはサラさんです`) treats them like an inanimate object and is extremely rude.

Instead, always pair この with a respectful person noun:

• Polite & Business: この方(このかた) (kono kata): “this gentleman / this lady.”
• Neutral: この人(このひと) (kono hito): “this person.”
• この方は田中先生です(このかたはたなかせんせいです): “This is Professor Tanaka.”

In Restaurants & Shops

When pointing to a menu or shelf, この + [noun] provides crystal-clear precision:

• このラーメンをお願いします(このらーめんをおねがいします): “This ramen, please.”
• この靴を履いてもいいですか(このくつをはいてもいいですか): “May I try on these shoes?”