IPA: /ˌʌndərɪˈpɔːrt/
KK: /ʌndərɪˈpɔrt/
To give a report that shows a smaller amount than what is true or real.
The company was accused of trying to underreport its earnings to avoid paying higher taxes.
Past: underreported
Past Participle: underreported
Underreport → It is formed from "under-" (meaning below or insufficiently) and "report" (from Latin "reportare", meaning to carry back or bring back). The word means to report something insufficiently or to convey less information than is accurate.
Think of reporting something 'below' the actual amount — 'under-' means below, and 'report' means to convey information.
No commonly confused words.