English Reference
noun

monitoring

n.
US /ˈmɑnətɝɪŋ/ UK /mˈɒnɪtəɹɪŋ/ mon·i·tor·ing

  1. 01 B2 Upper Intermediate

    the regular act of watching or testing something to make sure it is safe, working, or following rules.

    the continuous or regular observation of a process, environment, or population to detect signals, movements, or changes in quality.

    Simple

    The hospital uses constant heart monitoring for patients in the intensive care unit.

    In context

    Environmental monitoring of the river revealed a significant decrease in pollutants following the implementation of stricter industrial regulations.

    Usage

    often used as an uncountable noun in professional or technical contexts.

Usage monitoring service · monitoring programs · monitoring showed

The International Maritime Organization (IMO) – the United Nations maritime agency – said on Thursday that it was “closely monitoring” the situation and would “continue to support ongoing efforts”, without providing further details.

Al Jazeera· 14 Aug 2026

Local volunteers monitoring the birds say they have now recorded more than 160 vultures, up from about 20 recorded in 2017.

BBC News· 12 Aug 2026

From monitor + -ing.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Common
Updated