綁在一起，一起動
同一條繩子，換個方向看：不是把東西綁死，而是把兩樣東西綁在一起。綁好之後，兩邊就一起動。這是理解上的連結，方向由介系詞看得出來——with 是跟誰綁，between 是哪兩件事被綁著。
noun · B2
An agreement between two companies or organizations to work together as partners.
合作；結盟
核心畫面
One way to hold this word: it is the noun for what a rope does. Tie something up and two things follow. The thing itself cannot move any more, and anything you tied it to now moves with it. American English takes the first road: a tie-up is traffic or a system that has stopped and cannot go on. The other senses take the second: two companies tied together as partners, or two facts tied together so that one goes with the other. When you meet the word, ask whether something is held still, or whether two things are held together.
可以想成：tie-up 就是「綁」這個動作留下來的名詞。繩子一綁，會發生兩件事。一是東西被綁住，動不了。二是兩樣東西…更多收起
可以想成：tie-up 就是「綁」這個動作留下來的名詞。繩子一綁，會發生兩件事。一是東西被綁住，動不了。二是兩樣東西被綁在一起，從此一起動。美式英文的塞車、系統停擺，走的是第一條路。公司結盟、兩件事互相關聯，走的是第二條。看到 tie-up，先問一句：是「綁住不能動」，還是「綁在一起」？From the word’s history
Wiktionary records this noun as deverbal from the phrasal verb 'tie up' — the noun is simply the action turned into a thing.
來源資料把這個名詞記為直接從動詞片語 tie up（綁起來）變來的，也就是把動作直接當成一個東西來說。這條線索正好解釋了為什麼它的幾個意思都繞著「綁」在轉。
Wiktionary entry for tie-up (packet source_ref kaikki:3f6f69a190036ae4:1481443450): "Deverbal from tie up."
From the picture
Also in this word
noun · B2
A situation in which traffic stops moving, or in which a system, a plan or a piece of work is stopped for a while and cannot go on.
堵塞；停擺