noun, noun which may take the genitive case particle 'no'
Refers to a physical fold or crease, such as in paper or cloth. Often used with つける or できる.
紙に筋目をつける。
I make a crease in the paper.
この布は筋目がつきやすい。
This cloth creases easily.
noun, noun which may take the genitive case particle 'no'
Used for family lineage or bloodline, often in formal or historical contexts. Can also refer to the lineage of a school or tradition.
彼は由緒ある筋目の出だ。
He comes from a distinguished lineage.
この流派の筋目を継ぐ者は少ない。
Few people carry on the lineage of this school.
noun, noun which may take the genitive case particle 'no'
reason; logic; thread; method; system
Abstract sense: the logical thread or coherence of an argument, plan, or system. Similar to 筋道 (すじみち). Often used in phrases like 筋目が通る (to be logical) or 筋目を立てる (to make a coherent argument).
See also: 筋道 (すじみち)
彼の話は筋目が通っている。
His story is logical.
計
noun, noun which may take the genitive case particle 'no'
Refers to a connection or relationship between things, often in a systematic or logical sense. Can be used for social ties or the coherence of a narrative.
事件の筋目をたどる。
I trace the connections of the incident.
両者の間には深い筋目がある。
There is a deep connection between the two.
Let's clarify the logic of the plan.
系統 is a more technical term for 'system' or 'lineage', while 筋目 has a slightly more traditional or formal nuance for lineage.
Compound of 筋 (すじ, 'line, thread, logic') and 目 (め, 'eye, point, mark'). The combination suggests a visible line or a point of connection, extended metaphorically to lineage and logical coherence. The exact historical derivation is uncertain.