Plural of hiccough; multiple involuntary contractions of the diaphragm, or a series of hiccup sounds.
Regular plural formation adding '-s' to 'hiccough,' despite the base word's unusual spelling.
What's odd is that 'hiccoughs' and 'hiccups' are both correct plurals in English—we accept both spellings as legitimate because language is ultimately about communication, not perfect logic.
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