Vocabulary consisting only from characters you are able to read
真空
šinkuu
vacuum, hollow, emptymix
お手洗い
otearai
toilet, restroom, lavatory, bathroom (US)jlpt5
原発
genpacu
(1)(abbr) nuclear power plant, nuclear power generation, (adj-no,n,vs) (2)primary (e.g. primary immunodeficiency syndrome) denki
うま味
umami
(1)good flavor (flavour), good taste, deliciousness, (2)umami (fifth category of taste, corresponding to the flavour of glutamates), (3)skill, (4)profit mix