固定（こてい、kotei）
- fixed

The Japanese word 固定 (こてい) primarily means "fix," "fasten," "secure," "establish," or "set." It implies making something stable, unchanging, or permanent. It can apply to both physical objects and abstract concepts. The concept of 固定 involves preventing movement, change, or fluctuation. The term encompasses the idea of making something firm and unyielding. The meaning depends on the context of use. The core idea is creating a state of stability and permanence. This word can be a noun (meaning the state of being fixed), a verb (meaning to fix or to make something fixed) or an adjective (describing something that is fixed.)

⚫︎ 机を壁に 固定 する Translation: Fix the desk to the wall. ⚫︎ スケジュールを 固定 する Translation: Set/Establish the schedule. ⚫︎ このソフトウェアは 固定 のアドレスを使います Translation: This software uses a fixed address.

⚫︎ Use 固定 when you want to describe the act of making something unmovable or permanent. ⚫︎ It is used in a wide range of contexts, from physically securing objects to establishing rules or concepts. ⚫︎ It can be used both formally and informally, depending on the situation and sentence structure. For example, business scenarios tend to require the formal use of the word. ⚫︎ Consider the context to use the appropriate verb conjugation. For example, to say "to fix" you'd use 固定 する, which is the dictionary form of the verb, and so on.

⚫︎ The word 固定 is typically written in kanji. ⚫︎ The reading is こてい in hiragana. ⚫︎ There are no other common ways to write this word. ⚫︎ The okurigana (送りがな, or suffix hiragana) for the verb form is typically する (to do/make), resulting in 固定 する.

⚫︎ 確定 (かくてい - determination, decision) - often used to express the act of fixing something concretely, such as a date or schedule. ⚫︎ 定める (さだめる - to decide, to establish) - similar to setting or fixing something. ⚫︎ 設置 (せっち - installation, establishment) - specifically refers to the act of setting up or installing something in a particular place. ⚫︎ 安定 (あんてい - stability) - the state of being fixed or unchanging. ⚫︎ 確保 (かくほ - securing, ensuring) - the act of fixing something in a secure state.

⚫︎ 変更 (へんこう - change, alteration) - the opposite of fixing or establishing something. ⚫︎ 可変 (かへん - variable, changeable) - describes something that can change. ⚫︎ 移動 (いどう - movement, relocation) - the act of changing the position of something. ⚫︎ 不安定 (ふあんてい - instability) - the state of not being fixed or secure.

このネジはしっかりと 固定 してください。 ・Translation: Please fix this screw securely. ・Explanation: This sentence instructs someone to make a physical object (a screw) secure and not movable. The use of しっかりと(shikkari to - firmly, securely) further emphasizes the need for stability.

会議の時間は午前10時に 固定 されました。 ・Translation: The meeting time was fixed at 10 am. ・Explanation: This sentence describes an abstract idea (a meeting time) being established or set to a specific time. The use of the passive voice されました (saremashita - was done) indicates that the action of fixing was done by someone else.

The word 固定 is a compound word derived from two kanji: 固 (ko - hard, firm) and 定 (tei - to fix, to decide). Therefore, the combination of these kanji suggests the meaning of making something firm, unmoving, or set in place.