Ready to learn about another fascinating kanji? Today, we’re exploring 充, an N1 kanji that's incredibly versatile. It expresses ideas like 'filling,' 'charging,' 'allotting,' and 'fulfilling.'
While it might seem advanced, understanding 充 will significantly enhance your grasp of nuanced Japanese expressions, especially in formal or technical contexts. Let's get started!
Meaning
The kanji 充 fundamentally conveys the concepts of 'filling up,' 'charging,' 'supplying,' 'allotting,' or 'being sufficient.' It's a kanji that relates to completeness, adequacy, and the act of making something full or satisfactory. Think of charging a phone battery, allocating resources for a project, or living a fulfilling life – 充 connects to all these ideas.
The origin of 充 is quite interesting! It's traditionally interpreted as a variant of 兒 (child or person) with an additional element on top, resembling a lid or a covering. Some scholars suggest that the top part (亠 and 兀) signifies something 'going into' or 'covering.' Meanwhile, the bottom part (儿, a variant of 人) represents a person.
Put together, this visual combination strongly implies a person actively 'filling' or 'supplying' something to its capacity. It evokes a sense of abundance, completion, or making something whole and adequate. This isn't just about simple physical filling; it also encompasses providing sufficiency and making things substantial.
This kanji consists of 6 strokes and is a jouyou kanji, specifically categorized as 'S' grade. This means it's typically learned in secondary school or higher, reflecting its N1 JLPT level. Its nuanced meanings make it a valuable addition to your Japanese vocabulary.
Readings
Like many kanji, 充 has both On'yomi (Chinese-derived) and Kun'yomi (native Japanese) readings. Mastering these will significantly expand your vocabulary!
On'yomi (音読み) — Chinese-derived readings
The primary On'yomi for 充 is ジュウ (jū). This reading is by far the most common and is used extensively in compound words. These often have formal, technical, or abstract meanings related to filling, charging, making substantial, or replenishing. When you see 充 in a compound, it will almost always take this reading.
- 充電 (jūden) — This means 'charging' a battery or device. It's a fundamental word in our tech-filled lives! You'll hear it every time you plug in your phone.
- 補充 (hojū) — Meaning 'replenishment,' 'supplement,' or 'filling up a shortage.' Think of restocking supplies at a store, like paper in a printer, or refilling a document.
- 充実 (jūjitsu) — This expresses 'fullness,' 'completion,' 'substantiality,' or 'enrichment.' It's used to describe a satisfying life, rich and meaningful content, or a complete experience. For example, a student might say their study abroad experience was 充実していた (fulfilling).
Kun'yomi (訓読み) — Native Japanese readings
充 also has a couple of important Kun'yomi readings, which are used when the kanji stands alone or is part of a native Japanese verb. These readings often add a more direct, active sense to the kanji's meaning.
あてる (ateru) — When used as 充てる, it means 'to allot,' 'to assign,' or 'to set aside something' (like time, personnel, or funds) for a specific purpose. It strongly implies dedicating resources to a particular need or task. While you might also see 当てる with a similar meaning, 充てる specifically emphasizes filling a requirement or allocating resources.
時間を充てる (jikan wo ateru) — to allot time (e.g., for studying for the JLPT).
人員を充てる (jin'in wo ateru) — to assign personnel (e.g., to a new project or department).
予算を充てる (yosan wo ateru) — to appropriate/allot a budget (e.g., for marketing expenses).
みたす (mitasu) — When used as 充たす, it means 'to fulfill,' 'to satisfy,' or 'to meet a requirement or demand.' This is similar to 満たす, but 充たす often emphasizes the adequacy or sufficiency of what is provided to meet a need, rather than just physical fullness.
条件を充たす (jōken wo mitasu) — to fulfill conditions or requirements (e.g., for a job application).
要求を充たす (yōkyū wo mitasu) — to satisfy demands or requests (e.g., customer requests).
必要を充たす (hitsuyō wo mitasu) — to meet needs or necessities (e.g., a product meeting market needs).
Common Words & Compounds
Let's look at some more common words and compounds using 充. They're categorized to help you see the patterns in its usage, and they're excellent for expanding your N1 vocabulary!
Concepts of Filling and Supplying
- 充電 (jūden) — Charging (a battery, device). An essential term in our electronic age! When your phone battery is low, it needs 充電.
- 補充 (hojū) — Replenishment, supplement, replacement. Imagine a shop owner performing 補充 by restocking shelves, or a team welcoming 補充 members to fill vacancies.
- 充填 (jūten) — Filling (a container, cavity). This term is often used in more technical or industrial contexts, like 歯の充填 (dental filling) or 袋への充填 (filling a bag with products).
- 充当 (jūtō) — Appropriation, allotment (e.g., funds). This is about designating funds or resources for specific purposes, like 費用を充当する (to appropriate expenses for a specific project).
Concepts of Fullness and Sufficiency
- 充実 (jūjitsu) — Fullness, substantiality, enrichment, completion. This is a wonderfully positive word, often used to describe a rich, meaningful life (充実した人生) or thorough, valuable content (内容が充実している).
- 充満 (jūman) — Saturation, pervading, filling up completely. Think of a room 充満 with the aroma of freshly brewed coffee, or a space 充満 with a certain atmosphere.
- 飽和充填 (hōwa jūten) — Saturation filling. A more specialized term, combining 'saturation' and 'filling,' often found in scientific or engineering contexts, such as in chemical processes.
Verbal Uses & Nuances
- 充てる (ateru) — To allot, to assign, to apply. As discussed in Kun'yomi, this verb is about dedicating resources.
- 充たす (mitasu) — To fulfill, to satisfy, to meet. Another key Kun'yomi verb, focusing on adequacy and meeting demands.
- 未充 (mijū) — Unfulfilled, not supplied (less common). While not frequently encountered on its own, it can appear in formal documents or reports to indicate a lack of something that should be present, e.g., 未充当 (unappropriated funds).
- 充血 (jūketsu) — Congestion, hyperaemia. Often used for bloodshot eyes (目が充血している), where blood vessels are "filled" to capacity, making them red.
Example Sentences
Let's see 充 in action with some example sentences! Pay attention to how its meaning shifts depending on the context.
スマートフォンを充電するのを忘れてしまった。
Sumātofon o jūden suru no o wasurete shimatta.
I forgot to charge my smartphone.
この仕事に時間を充てるのは難しい。
Kono shigoto ni jikan o ateru no wa muzukashī.
It's difficult to allot time for this work.
毎日の生活が大変に充実していると感じます。
Mainichi no seikatsu ga taihen ni jūjitsu shite iru to kanjimasu.
I feel that my daily life is very fulfilling.
お客様の要求を充たすことが、私たちの最優先事項です。
Okyaku-sama no yōkyū o mitasu koto ga, watashitachi no saiyūsen-jikō desu.
Satisfying customer demands is our top priority.
オフィスでは文房具の補充が定期的に行われます。
Ofisu de wa bunbōgu no hojū ga teikiteki ni okonawaremasu.
Stationery replenishment is carried out regularly in the office.
その会議は内容が充実しており、とても有意義でした。
Sono kaigi wa naiyō ga jūjitsu shite ori, totemo yūigi deshita.
The meeting had substantial content and was very meaningful.
イベントの開催には多大な費用を充当しました。
Ibento no kaisai ni wa tadai na hiyō o jūtō shimashita.
A large amount of money was appropriated for holding the event.
研究室には、実験で使われたガスが充満していた。
Kenkyūshitsu ni wa, jikken de tsukawareta gasu ga jūman shite ita.
The laboratory was filled with the gas used in the experiment.
Memory Tip
To help you remember 充, imagine a little person (儿, a variant of the 'person' radical) trying to lift and