- 変化【へんか】 - change, variation, alteration, mutation, transition, transformation, transfiguration, metamorphosis, variety, diversity, inflection, declension, conjugation, sidestepping 
- 文化【ぶんか】 - culture, civilization, civilisation, Bunka era (1804.2.11-1818.4.22) 
- 変化【へんげ】 - shapeshifting (of an animal or spirit), goblin, ghost, apparition, bugbear, incarnation, transformation 
- 進化【しんか】 - evolution, evolution, becoming more advanced, progress, development, improvement 
- 悪化【あっか】 - deterioration, getting worse, worsening, aggravation, degeneration, corruption 
- 強化【きょうか】 - strengthening, intensifying, reinforcement, enhancement, solidification 
- 化け物【ばけもの】 - goblin, apparition, monster, ghost, phantom, spectre, specter 
- 化粧【けしょう】 - make-up, makeup, cosmetics, decoration, dressing, veneer 
- 浄化【じょうか】 - purification, cleanup (e.g. of politics), purge 
- 化する【かする】 - to change (into), to turn (into), to transform (into), to become, to influence 
- 化学【かがく】 - chemistry 
- 酸化【さんか】 - oxidation, oxidization 
- 合理化【ごうりか】 - rationalization, rationalisation, rationalize, rationalise 
- 国際化【こくさいか】 - internationalization, internationalisation 
- 化石【かせき】 - fossil, petrifaction, petrification, fossilization, fossilisation 
- 文化財【ぶんかざい】 - cultural assets, cultural property 
- お化け【おばけ】 - ghost, apparition, goblin, monster, demon, something unusually large 
- 消化【しょうか】 - digestion (of food), digestion (of information), assimilation, thorough understanding, consumption, absorption, using up, meeting (e.g. a quota), completion, losing one's form and turning into something else 
- 文化的【ぶんかてき】 - cultural 
- 老化【ろうか】 - ageing, aging, senile deterioration