the state of being crowded and full of traffic
traffic congestion
to stop holding something or stop it from being held so that it can move, fly, fall, etc. freely
release /rɪˈliːs/ (release harmful substances into the air)
containing a lot of people, things, plants, etc. with little space between them
density /ˈdensəti/ (e.g. traffic density)
to become less unpleasant, painful or severe; to make something less unpleasant, etc. SYNONYM alleviate /əˈliːvieɪt/
ease /iːz/ (e.g. traffic jams can be eased)
gas, etc. that is sent out into the air
emission /ɪˈmɪʃn/ (e.g. carboon emissions)
that can be used instead of something else
alternative /ɔːlˈtɜːrnətɪv/ (e.g. alternative forms of transportation)
connected with breathing
respiratory /ˈrespərətɔːri/ (e.g. the respiratory system)
the result or effect of an action or event
outcome /ˈaʊtkʌm/ (e.g. health outcomes)
a substance that pollutes something, especially air and water
pollutant /pəˈluːtənt/ (e.g. pollutants from nearby industries)
to become or make something become smaller, weaker, less important, etc. SYNONYM diminish
lessen /ˈlesn/ (e.g. lessen the impact of global warming)
causing worry, difficulty or hard work
burdensome /ˈbɜːrdnsəm/
to make something happen suddenly
trigger /ˈtrɪɡər/ (e.g. trigger inconvenience)
deserving to be noticed or to receive attention because it is unusual, important or interestingSYNONYM significant
noteworthy /ˈnəʊtwɜːrði/ (e.g. It is noteworthy that only 15% of senior managers are women.)
to stop something from being done or used especially by lawSYNONYM forbid
prohibit /prəˈhɪbɪt/ (e.g. a law prohibiting the sale of alcohol)
instead of
in lieu /luː/ of something (e.g. They took cash in lieu of the prize they had won.)
to make somebody interested and excited about something
stimulate /ˈstɪmjuleɪt/ (e.g. Parents should give children books that stimulate them.)
