IPA: /ˈʌpˌstɑːrt/
KK: /ˈʌpˌstɑrt/
adjective
Definition: Someone who has recently gained wealth or power and behaves arrogantly or presumptuously.
Example: The upstart businessman made bold claims about his company's future.
intransitive verb
Definition: To suddenly rise or emerge, often unexpectedly or with a sense of surprise.
Example: The new technology caused many companies to upstart in the market.
noun
Definition: A person who has suddenly become wealthy or important, often behaving arrogantly because of their new status.
Example: The upstart businessman surprised everyone with his bold ideas and confidence.