Englishfor English speakers
favourable
Adjective
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If something is favourable, then it is pleasing.
His smart attitude left a favourable impression on everybody.
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If something is favourable, then it is useful or helpful
The favourable conditions helped us to finish our task quickly.
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If something is favourable, then it happens at a suitable time
vulnerability
Noun
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A vulnerability is when a person or thing can be attacked or harmed.
Microsoft Windows has many vulnerabilities.