本旨|ほんしhonshi[1]atamadaka (head-high)

1. nounmain object; principal object; true aim

• Synonym目的もくてきNeutralThe most common, neutral word for a purpose or goal; it does not stress an original intent or true aim.
• Synonym狙いねらいNeutralAn aimed-at target or intention, tending toward a concrete strategy; common in colloquial speech.
• Synonym趣旨しゅしNeutralThe gist or purport of something; common in formal everyday settings, and the closest to 「本旨」.
• Related目当てめあてNeutralA goal or what one comes for, as in 「旅行の目当て」 and 「目当ての店」; concrete, everyday usage.
• Related趣意しゅいWrittenA motive or gist; rare and mostly met in written prose, close in meaning to 「趣旨」.
• Antonym末節まっせつWrittenMinor, nonessential details in written prose; the opposite of 「本旨」, which denotes the fundamental aim.

For the purpose or gist of an activity or regulation, 「趣旨」 is the everyday choice; use 「本旨」 to stress the original, fundamental intent, and 「目的」 for a plain purpose. 「狙い」 and 「目当て」 cover concrete aims; 「趣意」 is rare written prose.

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

1. 本来ほんらいの趣旨しゅし、本当ほんとうの考かんがえ。