monitor

Everyday

1. A computer screen. tree →
2. A machine that watches and shows something, like a heart monitor or a baby monitor. tree →
3. (at school) A pupil with a special job: «milk monitor», «book monitor». tree →
4. (verb) To watch or check something carefully over time. tree →
5. (monitor lizard) A large lizard, like the Komodo dragon. tree →

In the lessons

In school: class monitors help the teacher; computers have monitors. In science: we monitor plant growth, temperature or weather every day and record results. In everyday life and safety: baby monitors, heart monitors in hospitals; parents monitor screen time. Phrases: «keep monitoring», «screen monitor», «heart rate monitor».

Examples

• Please turn off the monitor before you leave. tree →
• I'm the plant monitor this week, so I water the plants. tree →
• We monitored the temperature every day for a week. tree →
• The nurse checked the heart monitor. tree →
• The baby monitor lets parents hear the baby. tree →
• A monitor lizard can grow longer than a man. tree →
• Our teacher monitors how much time we spend online. tree →

Note

Countable noun; verb: monitored, monitoring (no double r). Spelling: «-or», not «-er». Noun from the verb: monitoring.