趣旨【しゅし】
meaning, point (e.g. of a statement), gist, effect, goal, intent, object, aim, point
要旨【ようし】
point, essentials, gist, summary, fundamentals
旨【むね】
principle, aim, main purpose, central part, pillar, purport, gist, drift, meaning, instructions, orders, intention, wishes
論旨【ろんし】
point of an argument, drift of an argument
本旨【ほんし】
main object, principal object, true aim