optician's - optika (obchod)

noun - a shop where you can buy glasses

 

on cue - v pravý okamžik

adverb - exactly at the time that is expected or needed

 

overage - přebytek

noun - a surplus of something

 

on your own - sám (ty), ty sám, na vlastní pěst

adverb - (you) alone, without help

 

oil - ropa

noun - a thick dark liquid that is used for making many kinds of fuel (e.g. petrol, diesel etc.), it comes from under the ground

 

on time - přesně na čas

adverb - exactly at the time

 

on top of - nahoře na (čem)

preposition - on the upper surface of

 

oblivious - nedbající, nehledící, zapomínající, nedávající pozor

adjective - not noticing something or caring about something

 

obscure - nejasný, nezřetelný

adjective - difficult to understand; not clear

 

overflowing - přetékající, přeplněný

adjective - too full that there is no more space

 

orphan - sirotek

noun - a child who has lost both parents

 

one-hit wonder - hit jedné sezóny

noun - a thing that is popular for a very short time only

 

optimist - optimista

noun - a person who is able to see the good side of everything

 

official - oficiální

adjective - approved by an authority

 

on my own - sám (já), já sám, na vlastní pěst

adverb - alone, without help