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/ˌəʊliˈændə(ɹ)/ · noun
Nerium oleander, a notoriously poisonous shrub in the dogbane family, Apocynaceae, but nonetheless widely grown as an ornamental, having leathery lance-shaped leaves and deep rose-colored or white flowers..
Use oleander when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Oleander means Nerium oleander, a notoriously poisonous shrub in the dogbane family, Apocynaceae, but nonetheless widely grown as an ornamental, having leathery lance-shaped leaves and deep rose-colored or white flowers..
Common synonyms include laurel rose, rose laurel, rosebay, nerium oleander.
The opposite depends on the specific sense.
Use oleander where its definition matches the intended context.
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