BBC 10

umami

a savoury flavour/one of the five basic tastes

sentient

describes animals which are able to experience feelings, such as joy and pain

life cycle

the series of changes something goes through from birth to death

solitary

likes to live alone

in captivity

kept somewhere and not allowed to leave, like in a zoo

trade-off

to exchange one thing for another

waste

something you throw away or lose without using or consuming

leftovers

the remains of food or a meal, which have not been eaten

landfill

a place where rubbish is dropped or buried

a household name

well-known by ordinary people of a particular place or culture

infrastructure

the basic systems and services of a society

abundance

more than needed