How to say "gravity" in Japanese

Choosing the right word
  • 重力じゅうりょくJLPT N2approx.Common
    nounThe physical force that pulls objects toward each other, as in physics or everyday talk about things falling. This is the word you want whenever 'gravity' is literal.
    月つきの重力じゅうりょくは地球ちきゅうの6分ぶんの1である。↗
    The gravity of the moon is one-sixth of that of the earth.
  • 重要性じゅうようせいCommon
    nounCovers the figurative sense of 'gravity' as seriousness or importance of a matter, though it usually translates simply as 'importance'. Choose it when discussing how significant something is.
    私わたしたちはその重要性じゅうようせいを主張しゅちょうした。↗
    We insisted on its importance.
  • 威厳いげんCommon
    nounRefers to the gravity of a person's bearing — dignity, majesty, solemn presence. It describes people or manner rather than situations, and is rarely the word for other senses of 'gravity'.
    その捕虜ほりょには威厳いげんがあった。↗
    The prisoner of war bore himself with great dignity.
  • 軽重けいちょうCommon
    nounMeans the relative weight or importance of things compared with one another, as in weighing priorities. It matches 'gravity' only in this comparative sense and is otherwise an uncommon choice.

Use 重力 for physical gravity, 重要性 for the importance of a matter, 威厳 for a person's dignified gravity, and 軽重 for relative weight or priority among things.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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