1. screwUsually written using kana alone
  • この
  • きかい機械
  • いちじかん1時間
  • せん
  • ねじ
  • せいぞう製造
  • する
This machine cranks out a thousand screws an hour.
2. key (of a clock, watch, etc.); springUsually written using kana alone
Wikipedia definition
3. HelixA helix is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix – for example, a spiral ramp – is called a helicoid.
Read “Helix” on English Wikipedia
Read “螺旋” on Japanese Wikipedia
Read “Helix” on DBpedia
Other forms
捻子 【ねじ】捩子 【ねじ】螺旋 【ねじ】螺子 【らし】ネジ
螺子: Rarely-used kanji form. 捻子: Rarely-used kanji form. 捩子: Rarely-used kanji form. 螺旋: Rarely-used kanji form. 螺子: Rarely-used kanji form.


to talk about this word.