Meaning
The kanji 摩 (MA) primarily means to rub, to chafe, to grind, to polish, to wear out, and friction. It describes the physical action of one surface moving against another, often leading to wear, smoothing, or even heat generation. You'll often see this kanji in technical fields like mechanics and materials science, but also in more abstract or figurative phrases. Ultimately, 摩 implies a process of contact and movement—gentle or forceful—that alters the state of the objects involved.
It originated as a phono-semantic compound (形声文字 - keisei moji). This means one part suggests the meaning and another provides the pronunciation. The radical 广 (madare) represents a 'cliff' or 'overhanging rock.' This component hints at the meaning, suggesting a hard, unyielding surface for rubbing or abrading. The phonetic component, 麼 (ma in Chinese), includes 麻 (hemp) and 幺 (small, delicate). This element gives the kanji its 'MA' sound. While 麻 relates to hemp, 幺 can suggest smallness or fineness, which might metaphorically connect to the particles produced by rubbing or the meticulousness of polishing. Therefore, 摩 visually suggests rubbing something against a hard surface like a cliff. The phonetic component refines this to imply 'friction' or 'grinding' action.
With 15 strokes, 摩 is a relatively complex kanji. As an N1 level character, it isn't assigned a specific school grade. Instead, it's considered advanced, appearing in academic texts, specialized fields, and nuanced expressions in adult literature.
Readings
On'yomi (音読み) — Chinese-derived readings
The main On'yomi reading for 摩 is マ (MA). You'll encounter this reading most often in modern Japanese, particularly within compound words.
マ (MA): This reading reflects the original Chinese pronunciation and is common in many compounds.
摩擦 (masatsu) — friction, rubbing, chafing
摩耗 (mamou) — wear and tear, abrasion, attrition
按摩 (anma) — massage (traditional Japanese style)
Kun'yomi (訓読み) — Native Japanese readings
Kun'yomi readings are native Japanese pronunciations linked to a kanji's meaning. For 摩, the most common is:
摩る (さする): This verb means 'to rub,' 'to stroke,' or 'to caress.' While similar to 擦る (kosuru/suru) or 磨る (suru), 摩る (さする) often implies a gentler, repetitive motion. It's typically used to soothe, comfort, or clean rather than for abrasive actions.
手を摩る (te wo sasuru) — to rub one's hands (e.g., in anticipation or to warm them)
肩を摩る (kata wo sasuru) — to rub/massage someone's shoulder
背中を摩る (senaka wo sasuru) — to rub someone's back
Common Words & Compounds
You'll find 摩 in many important compound words. These often relate to physical actions, scientific concepts, and even abstract ideas. Here are some examples, grouped by theme:
Physical Actions & Scientific Terms:
摩擦 (masatsu) — friction; rubbing; chafing.
Example: 車のタイヤと路面との間に摩擦が生じる。 (Friction occurs between car tires and the road surface.)
- 摩耗 (mamou) — wear and tear; abrasion; attrition.
Example: 機械の部品が摩耗して交換が必要だ。 (The machine parts are worn out and need replacement.)
- 摩損 (mason) — abrasion loss; wear and tear. Similar to 摩耗, often used for material loss.
Example: 長年の使用でコインに摩損が見られる。 (Abrasion loss can be seen on the coin due to years of use.)
- 摩砕 (masai) — grinding; pulverization; crushing.
Example: 試料を乳鉢で丁寧に摩砕する。 (Carefully grind the sample in a mortar.)
Architecture & Figurative Expressions:
摩天楼 (matenrou) — skyscraper (literally "sky-rubbing tower").
Example: ニューヨークには多くの摩天楼が立ち並ぶ。 (Many skyscrapers line up in New York.)
- 摩訶不思議 (maka fushigi) — profoundly mysterious; great wonder; utterly strange.
Example: その事件はまさに摩訶不思議な出来事だった。 (That incident was truly a profoundly mysterious event.)
Traditional Practices & Verbs:
按摩 (anma) — massage (traditional Japanese therapeutic massage).
Example: 疲れた体を按摩で癒す。 (Heal a tired body with a massage.)
- 摩る (sasuru) — to rub; to stroke; to massage (Kun'yomi verb).
Example: 彼は不安そうに手を摩った。(He rubbed his hands nervously.)
Place Names & Buddhist Terms:
摩耶山 (Mayasan) — Mount Maya (a mountain in Hyogo Prefecture, Japan).
Example: 摩耶山からの夜景はとても美しい。 (The night view from Mount Maya is very beautiful.)
- 摩利支天 (Marishiten) — Marici (a Buddhist deity, often associated with protection and fortune).
Example: 摩利支天は武士から信仰された神様です。 (Marici is a deity worshipped by samurai.)
Example Sentences
疲れた足を優しく摩ってもらった。
Tsukareta ashi wo yasashiku sasutte moratta.
I had my tired feet gently rubbed.
摩擦がないと物は動かせない。
Masatsu ga nai to mono wa ugokasenai.
Things cannot be moved without friction.
長年使った機械の部品は摩耗が激しい。
Naganen tsukatta kikai no buhin wa mamou ga hageshii.
The machine parts used for many years show severe wear and tear.
その都市には新しい摩天楼が建設されている。
Sono toshi ni wa atarashii matenrou ga kensetsu sareteiru.
A new skyscraper is being constructed in that city.
伝統的な按摩は体を深くリラックスさせる。
Dentouteki na anma wa karada wo fukaku rirakkusu saseru.
Traditional massage deeply relaxes the body.
その島の文化は私にとって摩訶不思議だった。
Sono shima no bunka wa watashi ni totte makafushigi datta.
The culture of that island was profoundly mysterious to me.
寒い日は手を摩って温める。
Samui hi wa te wo sasutte atatameru.
On cold days, I rub my hands to warm them.
この素材は摩擦熱に強い。
Kono sozai wa masatsunetsu ni tsuyoi.
This material is resistant to friction heat.
山頂から見る摩天楼の景色は圧巻だ。
Sanchou kara miru matenrou no keshiki wa akkan da.
The view of the skyscrapers from the mountaintop is spectacular.
Memory Tip
To help you remember 摩, consider its components: the radical 广 (madare), resembling a roof or a cliff, and the phonetic component 麼 (ma). The phonetic part, 麼, includes 麻 (hemp) and 幺 (small, fine). Picture someone vigorously rubbing (摩) hemp fibers (麻, from 麼) against a rough cliff face (广) to create a strong, fine (幺, from 麼) rope. The friction generated by this rubbing action is crucial. This visualization of wearing down material against a surface to achieve a refined result clearly illustrates the kanji's core meaning of 'rub,' 'friction,' or 'grind.'