Vocabulary consisting only from characters you are able to read
源
minamoto
source, origin; source, originmix
電線
densen
(1)electric line, electric cable, power cable, (2)telephone line, telegraph wire uchi
円滑
enkacu
smooth, undisturbed, uninterrupted, harmonious; (adj-na) smooth, undisturbed, uninterrupted, harmoniousmix
句
ku
(1)section (i.e. of text), sentence, passage, paragraph, (2)(ling) phrase, (3)verse (of 5 or 7 mora in Japanese poetry; of 4, 5, or 7 characters in Chinese poetry), (4)haiku, first 17 morae of a r mix