Englishfor English speakers
tobacco
Noun
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Tobacco is a plant that is used to make cigarettes.
Tobacco advertising is illegal to help reduce smoking.
necrosis
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noun
the localized death of living cells (as from infection or the interruption of blood supply)
virus
Noun
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A virus is a very small thing that can make people sick by getting into a living cell to copy itself.
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A computer virus is software that attacks your computer.
group
Noun
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When more than 2 things or people are together, they make a group.
group
Verb
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To put people or things together to make a group.