Englishfor English speakers
operational
Adjective
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If something is operational, it works and is ready to be used.
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If something is operational, it is effective.
level
Adjective
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Even, flat, straight, smooth, horizontal. Having all parts equally as high as all other parts.
This table is not level: things are rolling off it.
level
Noun
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A level is a place that is higher or lower than some other places.
The room you want is on the third level of this building.
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A tool for finding out whether a surface is level.
agreement
Noun
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An agreement is where everybody has the same feelings about something; when everyone has the same ideas; saying "yes".
We have an agreement with our teacher. If we do our homework we can go home early.