Denshi Jisho — Online Japanese dictionary

早々 そうそう 1: as soon as...; just after...; immediately after...;
2: (Adverb) hurriedly; in haste; quickly; promptly; early
Common word, Noun suffix, Adverbial noun 
葬送 そうそう 1: funeral; burial rites;
2: attendance at a funeral
Common word, Noun, Suru verb, No-adjective 
匆々 そうそう 1:
2: (Archaism) busy; hurried; rushed; () Yours Sincerely; Yours in haste
Na-adjective, Taru-adjective, Adverb taking the 'to' particle, Noun 
匆匆 そうそう 1:
2: (Archaism) busy; hurried; rushed; () Yours Sincerely; Yours in haste
Na-adjective, Taru-adjective, Adverb taking the 'to' particle, Noun 
層相 そうそう facies
Noun 
怱々 そうそう 1:
2: (Archaism) busy; hurried; rushed; () Yours Sincerely; Yours in haste
Na-adjective, Taru-adjective, Adverb taking the 'to' particle, Noun 
怱怱 そうそう 1:
2: (Archaism) busy; hurried; rushed; () Yours Sincerely; Yours in haste
Na-adjective, Taru-adjective, Adverb taking the 'to' particle, Noun 
早早 そうそう 1: as soon as...; just after...; immediately after...;
2: (Adverb) hurriedly; in haste; quickly; promptly; early
Noun suffix, Adverbial noun 
簇々 そうそう gathering; swarming
Taru-adjective, Adverb taking the 'to' particle 
簇簇 そうそう gathering; swarming
Taru-adjective, Adverb taking the 'to' particle 
草々 そうそう 1: brevity; rudeness; hurry;
2: Yours Sincerely
Na-adjective, Interjection, Noun 
草創 そうそう beginning; inauguration
Noun, Suru verb 
草草 そうそう 1: brevity; rudeness; hurry;
2: Yours Sincerely
Na-adjective, Interjection, Noun 
蹌々 そうそう moving unsteadily; staggeringly
Adverb taking the 'to' particle, Taru-adjective, Obscure term 
蹌蹌 そうそう moving unsteadily; staggeringly
Adverb taking the 'to' particle, Taru-adjective, Obscure term 
送葬 そうそう 1: funeral; burial rites;
2: attendance at a funeral
Noun, Suru verb, No-adjective 
錚々 そうそう eminent; distinguished
Taru-adjective, Adverb taking the 'to' particle, Usually written using kana alone 
錚錚 そうそう eminent; distinguished
Taru-adjective, Adverb taking the 'to' particle, Usually written using kana alone 
然う然う そうそう 1:
2: (Usually written using kana alone) so long; so often; so many; so much; (Interjection) oh, yes!; that's right; hmmm
Adverb 
草創期 そうそう beginning; outset
Noun 
葬送曲 そうそうきょく funeral march
Noun 
草草不一 そうそうふいつ Sincerely yours (with the nuance of "please excuse the brevity of this letter")
Noun 
葬送行進曲 そうそうこうしんきょく funeral journey; funeral march
Noun 

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