This is the 7722nd most frequent Japanese word.
反故
"反故" (hogo) means "scrap," "discarded matter," or "something nullified or rendered invalid."
The term "反故" here means to discard or nullify, often used metaphorically for disregarding agreements or promises.
彼の約束はしばしば反故にされる。
His promises are often discarded.
Here, "反故" refers to the action of nullifying or rendering a plan invalid.
この計画が反故になると、多くの人が失望するだろう。
If this plan is nullified, many people will be disappointed.
In this sentence, "反故" is used figuratively to mean disregarding or moving past previous failures.