Denshi Jisho — Online Japanese dictionary

よう 1: cornerstone; main point; keystone;
2: requirement; need;
3: (Noun or verb acting prenominally) necessary; required
Noun 
いる to need
Common word, Godan verb with ru ending, Intransitive verb 
いり expense; expenses
Noun 
かなめ 1: pivot;
2: vital point; cornerstone; keystone;
3: Japanese photinia
Common word, Noun 
ようし point; essentials; gist; summary; fundamentals
Common word, Noun 
ようそ 1: component; factor; item (e.g. in list);
2: (Computer terminology) element (e.g. in array); member (e.g. data structure)
Common word, Noun 
ようは in short; the point is
Common word, Adverb 
ようぎ essence
Noun 
ようぐ necessary tools
Noun 
ようす to need; to require; to take; to demand
Godan verb with su ending, Transitive verb 
ようず outline; rough sketch
Noun 
ようち important place; strategic location
Noun 
ようひ necessary or not; optional (items)
No-adjective 
ようむ important business
Noun 
ようろ 1: main or important road;
2: influential or important position; the authorities
Noun 
らぬ いらぬ needless
Na-adjective 
よういん essential member; necessary person; personnel
Common word, Noun 
よういん main cause; primary factor
Common word, Noun, No-adjective 
ようけん 1: important matter;
2: requirement; requisite; necessary condition; sine qua non
Common word, Noun 
ようこう main principle; gist; general plan; guidelines; outline
Common word, Noun 
ようこう important points; main points
Common word, Noun 
ようしょ important point; important position
Common word, Noun 
ようじん important person
Common word, Noun 
ようせい 1: appeal; call for something; request; claim; demand;
2: (Noun) axiom
Common word, Noun, Suru verb 
ようてん gist; main point
Common word, Noun 
ようぼう demand for; request
Common word, Noun, Suru verb 
ようやく summary; digest
Common word, Noun, Suru verb, No-adjective 
ようがい stronghold; strategic position
Noun 

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