( health ) a person who has been very sick for a long time and needs another person to take care of them
in • val • u • a • ble / in ' vrelyabl /
Be careful! Invaluable is not the opposite of valuable . The opposite of valuable is worthless .
in • var • i • a • bly aw / in ' veriabli /
in • va • sion / in'vei3n /
in .Vent О / in'vent/
to make or think of something for the first time
to say something that is not true
in • ven • tor / in 'ventar / noun [ count ] Marconi was the inventor of the radio.
in • ven • tion / in 'venjn /
[ count ] a thing that someone has made for the first time
[ noncount ] inventing something
in • ver • te • brate / in 'vartabrat / [count]
( biology ) any animal without a solid line of bones (a backbone ) going along its body
i n • vest AWL| / in ' vest /
( business ) to give money to a business or bank so that you
will get more money back
in • vest • ment AWL| / in 'vestmant /
in • ves • tor AWL / in ' vestar /
in • ves • ti • gate © Awl / in ' vestageit /
( in ves - ti - gates , in - ves ti - gat - ing , in - ves - ti - gat ed )
in • ves • ti • ga • tion AWL / investa ' geijn /
[ count, noncount ]
in • vis • i • ble aw / in ' vizabl /
If something is invisible , you cannot see it
in .vi .ta .tion © / ^nva'teijn/
If you have an invitation to go somewhere, someone has spoken or written to you and asked you to go
in .vite Ф / in'vait /
in • voice / ' invois /
( business ) a list that shows how much you must pay for things that someone has sold you, or for work that someone has done for you
in • vol • un • tar • y / in 'valanteri /
done without wanting or meaning to
in .volve О E / in ' valv /
( in volves , in - volv - ing , in - volved )
2 If you involve someone in something, you make them take part in it
in • volved aw / in ' valvd / Я
taking part in something; being part of something or
connected with something
in • ward / inward / ( also in - wards / inwardz / )
toward the inside or center