堆東西的人或東西
這一支就是字面本身，沒有任何專業背景。accumulate 加 -or，指做這件事的那一個。其他四個意思都可以看成把這個形狀搬進不同的領域。
noun · B2
A person or thing that slowly collects more and more of something, so that over time a large amount has built up.
越積越多的人或東西
核心畫面
One way to picture accumulator: something is being added to the same heap, over and over, and nothing is taken off. A of washed jam jars. A number that grows by one more amount each time round the loop. A tank taking in pressure a little at a time. Money left on the table after a win and pushed onto the next result. The word never names the heap itself — it names the one doing the piling, the person, the part, or the place where the pile sits.
accumulator 可以想成一幅畫面：東西一次又一次被加到同一堆上面，而且沒有東西被拿走。櫃子裡洗乾淨的四十個果…更多收起
accumulator 可以想成一幅畫面：東西一次又一次被加到同一堆上面，而且沒有東西被拿走。櫃子裡洗乾淨的四十個果醬罐。每跑一圈就多加一筆的數字。一點一點把壓力吃進去的儲壓槽。贏來的錢沒有收走，整筆推到下一場。這個字指的不是那一堆本身，而是那個負責堆的人、零件，或那一堆所在的位置。From the word’s history
The supplied source traces the word to Latin accumulātor, from the verb accumulō, formed from ad- (to, towards) and cumulus (a heap). Literally, the one that adds to the heap — which is the picture that all five uses still show.
來源資料把這個字追到拉丁文 accumulātor，來自動詞 accumulō，而 accumulō 由 ad-（往…去）加上 cumulus（一堆）組成。字面上就是「往那一堆上面再加的那一個」。上面那幅畫面並不是後來附會的，它在組字的成分裡就寫著了。
Wiktionary entry supplied in the evidence packet (source_ref kaikki:3f6f69a190036ae4:64071594), including the etymology tree Latin cumulus / accumulō / accumulātor
Four branches
把算到一半的數字存著的地方
把「同一堆」換成同一個數字。每算一步就往上加一次，加完再放回原處，直到算完。堆的東西從實物變成數量，形狀完全沒變。
noun · C1
In computing, the place that holds the running result of a calculation while the work is still going on — either a special store inside the processor or a variable in a program that is updated step by step.
累加器
把能量存起來、要用時放出來的裝置
這一支堆的是能量。機器沒辦法在需要的那一秒生出大力氣，所以先一點一點存，需要時一次放。跟核心畫面唯一的差別是，這一堆最後會被整份倒出來。
noun · C1
In engineering, a part that stores up energy — such as pressure, hot water for steam, or spring force — and holds it until the machine needs it released.
蓄能器；儲壓裝置
把賭金一路往下疊的下注方式
堆的東西變成錢。贏來的部分不收走，整筆疊到下一場，再疊到下下一場。也因為這樣，中間只要錯一場，整堆就沒了。
noun · C1
Especially in British English, a kind of bet placed on several races or games at once: instead of the money being taken back after the first result, the whole amount is carried on to the next one, so nothing is won unless every pick is right.
累積式賭注（過關注）