尺度|しゃくどshakudo[1]atamadaka (head-high)

1. noungauge; standard; measure; criterion; index
   金銭きんせんは価値かちの尺度しゃくどである。↗

   Money is the measure of worth.
2. nounlength; size
3. noun(measuring) rule; scale

• Synonym基準きじゅんNeutralA standard taken as the basis for judgment, with a matter-of-fact, businesslike feel; 「尺度」 stresses the abstract yardstick for measuring value or degree.
• Synonym規範きはんWrittenWritten/formal prose. Norms or rules of conduct that should be followed; 「尺度」 is a standard used for measuring, not a rule to observe.
• Synonym標準ひょうじゅんNeutralA standard or average level, stressing the typical or normal value; 「尺度」 is the yardstick by which value or degree is measured.
• SynonymスタンダードNeutralA loanword for a standard or classic model, common in business and fashion; 「尺度」 never means a classic model.
• Synonym物差しものさしNeutralA ruler, used colloquially as a metaphor for a measuring standard; close to the figurative sense of 「尺度」 and interchangeable with it.
• Synonym規矩きくWrittenWritten/formal prose. An archaic, elegant word for rules and standards, rare and mostly in kanbun-style texts; in daily speech say 「基準」 or 「規範」.
• Synonym縄墨じょうぼくWrittenWritten/formal prose. A carpenter's ink line used metaphorically for rules; literary and rare — in everyday speech say 「規則」 or 「基準」.
• Related定規じょうぎNeutralA tool for drawing straight or curved lines, like set squares or French curves; it can also mean a standard or rule, while 「尺度」 is a standard for measuring.

Use 「尺度」 for a yardstick of value or degree, as in 「幸せの尺度」「尺度を変える」. For a basis of judgment say 「基準」, for conduct norms 「規範」, for the colloquial metaphor 「物差し」, and for a drawing tool 「定規」.

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

1. ものの長ながさをはかる器具きぐ。ものさし。
2. 長ながさや量りょうをはかる基準きじゅん。
3. 物事ものごとを判断はんだんするための基準きじゅん。