noun
beginning and end; from start to finish
Refers to the start and end of something, often with the idea of whether they fit together consistently. Common in set phrases such as 首尾一貫.
彼の説明は首尾一貫している。
His explanation is consistent from beginning to end.
話の首尾が合わない。
The beginning and end of the story do not fit together.
noun
result; outcome; course of events
Used for how a matter turns out or how events proceed. It is more formal and set-phrase-like than everyday 結果.
交渉の首尾を上司に報告した。
I reported the outcome of the negotiations to my boss.
計画の首尾は上々だった。
The plan turned out very well.
noun, noun or participle which takes 'suru'
successful handling; manage successfully; bring off successfully
The idea of handling something successfully is especially common in the adverbial form 首尾よく. The bare する verb 首尾する is possible but sounds stiff or old-fashioned in many modern contexts.
作戦は首尾よく運んだ。
The operation went successfully.
彼は難しい交渉をうまく首尾した。
He successfully managed the difficult negotiations.