Denshi Jisho — Online Japanese dictionary

四 し four
Common word, Numeric 
四 よ four
Numeric 
四 よん four
Common word, Numeric 
四季 しき four seasons
Common word, Noun 
四肢 しし limbs; extremities
Common word, Noun, No-adjective 
四囲 しい surroundings; circumference
Noun, Suru verb 
四夷 しい the surrounding barbarians (from Chinese)
Noun 
四有 しう (in Buddhism) the four stages of existence: birth, life, death, and limbo
Noun 
四気 しき weather of the four seasons (warmth of spring, heat of summer, cool of autumn, and cold of winter)
Noun 
四苦 しく the four kinds of suffering (birth, old age, disease, death)
Noun, Buddhist term 
四股 しこ sumo wrestler ceremonial leg raising and stomping
Noun 
四胡 しこ sihu (4-stringed Chinese musical instrument played with a bow)
Noun 
四顧 しこ look everywhere
Noun, Suru verb 
四時 しじ the four seasons
Noun 
四手 しで 1: zigzag-shaped paper streamer often used to adorn Shinto-related objects;
2: hornbeam (deciduous tree in the birch family)
Noun 
四土 しど four realms (in Tendai Buddhism or Yogacara)
Noun, Buddhist term 
四時 よじ 4 o'clock
Noun 
四十 よそ forty
Noun 
四方 よも every direction
Noun 
四角 しかく square
Common word, Na-adjective, Noun, No-adjective 
四月 しがつ April
Common word, Adverbial noun 
四方 しほう every direction
Common word, Noun 
四隅 よすみ four corners
Common word, Noun 
四日 よっか 1: fourth day of month;
2: four days
Common word, Noun 
四つ よっつ four
Common word, Numeric 
四海 しかい the whole world; the seven seas
Noun 
四計 しけい plans for one's day, plans for one's year, plans for one's life, and plans for one's family
Noun 
四光 しこう (in hanafuda) the collection of the four light cards
Noun 

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