rash
rash — noun
- rashsingular
- rashesplural
1. small red or pink marks that appear on the skin when the body reacts to an illne
small red or pink marks that appear on the skin when the body reacts to an illness or to something it is sensitive to, such as certain foods, medicines, or plants.
Léa's arms broke out in a red rash after she ate strawberries.
break out in a rash — suddenly develop a skin rash
The doctor said Tamar's heat rash would clear up in a cool room.
heat rash — rash caused by hot weather
Heather applied a medicated cream to her baby's diaper rash every morning.
An itchy rash appeared on Salma's neck after she wore a new scarf.
文法句型
have/get/develop a rash
a rash + on + body part
break out in a rash
用法筆記
This sense often pairs with verbs like 'get', 'develop', 'break out in', or 'have'. The rash is usually described by its cause or appearance, e.g. 'heat rash', 'nappy/diaper rash', 'itchy rash'.
常見錯誤
2. a situation in which many bad things of the same kind happen within a short time
a situation in which many bad things of the same kind happen within a short time, for example crimes, accidents, complaints, or illnesses.
There has been a rash of car burglaries in the neighbourhood this month.
a rash of + noun phrase — sudden series of unpleasant events
The school reported a rash of flu cases among students during the winter term.
A rash of complaints about the new checkout system flooded the customer service team.
Local shop owners said the rash of thefts was the worst they had seen.
文法句型
a rash of + noun phrase (unpleasant events)
用法筆記
Always used in the singular form 'a rash of' followed by a plural noun. The events described are always negative — you would not say 'a rash of good news'.
常見錯誤
rash — adjective
- rashpositive
- rashercomparative
- rashestsuperlative
1. doing something without enough thought about the possible risks or negative resu
doing something without enough thought about the possible risks or negative results; too quick to act or decide without considering whether it is wise.
Amihan regretted her rash decision to quit her job without finding another one first.
rash decision — a choice made too quickly without thinking
Leo's rash promise to lend his cousin money caused serious problems later.
rash promise — a promise made without considering the consequences
It would be rash to invest all your savings in one company without research.
The manager's rash remarks at the meeting upset several members of the team.
文法句型
rash + noun
it is rash + to-infinitive
be rash in + noun/-ing
用法筆記
Describes actions, decisions, or words — not a permanent personality trait. For a person who is habitually rash, use 'rashness' as a noun or describe the person's behaviour. Compare 'impulsive' (driven by sudden urge) — 'rash' emphasizes lack of thought about consequences. The adverb form is 'rashly' (e.g., 'He rashly quit his job without a backup plan'). The bare form 'rash' is not used as an adverb in modern English.