Englishfor English speakers
qualitative
Adjective
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A reason, idea or writing is qualitative if it is about the way something is, or about the thing's qualities, but not about amounts.
I have a qualitative idea of what his work is like, but I don't know how much work he's done.
Qualitative differences between advertisements are likely to be far more important than quite large differences in the number of advertisements.
marketing
Noun
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Marketing refers to the buying and selling in a market.
research
Noun
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Research is the process or result of trying to find an answer by reading, interviewing, watching, or doing experiments.
The last 10 years has provided a huge amount of research into a cure for cancer.
We've been conducting research into the reason for the changes in these fish.
research
Verb
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If you research a question, you try to find an answer, usually by reading a lot about it, or by doing experiments.
I have to research the history of King Henry II for my English class.