CEFR Level
Relating to the quality or nature of something rather than its quantity.
"The study focused on the qualitative aspects of customer feedback."
Deep and healthy sleep that is adequate and restorative, ensuring physical and mental well-being
"Quality sleep improves cognitive function and overall health."
Relating to the measurement or amount of something.
"The report included quantitative data on population growth."
A period of isolation to prevent the spread of disease.
"The travelers were placed in quarantine for two weeks."
the player who directs a team’s offense in American football
"The quarterback threw a perfect pass."
doubtful; dubious; suspicious; open to doubt or suspicion
"His questionable business practices led to an investigation."
a set of written questions used to collect information or opinions
"Participants filled out a detailed questionnaire about their habits."