Denshi Jisho — Online Japanese dictionary

さわ 1: swamp; marsh;
2: mountain stream; valley; dale
Common word, Noun 
茶話 さわ a chat over tea
Noun 
サワ Japanese Spanish mackerel (Scomberomorus niphonius)
Noun, Usually written using kana alone 
サワ sawara cypress (Chamaecyparis pisifera)
Noun, Usually written using kana alone 
サワ sour
Noun 
さわ sawara cypress (Chamaecyparis pisifera)
Noun, Usually written using kana alone 
さわ Japanese Spanish mackerel (Scomberomorus niphonius)
Noun, Usually written using kana alone 
騒ぎ さわ uproar; disturbance
Common word, Noun, Noun suffix 
騒ぐ さわ 1: to make noise; to make racket; to be noisy;
2: to rustle; to swoosh;
3: to make merry;
4: to clamor; to clamour; to make a fuss; to kick up a fuss;
5: to lose one's cool; to panic; to act flustered;
6: to feel tense; to be uneasy; to be excited
Common word, Godan verb with gu ending, Intransitive verb 
触る さわ to touch; to feel
Common word, Godan verb with ru ending, Intransitive verb 
障る さわ to hinder; to interfere with; to affect; to do one harm; to be harmful to
Common word, Godan verb with ru ending, Intransitive verb 
左腕 さわ 1: left arm;
2: left-handed (baseball pitcher)
Common word, Noun 
騷ぐ さわ 1: to make noise; to make racket; to be noisy;
2: to rustle; to swoosh;
3: to make merry;
4: to clamor; to clamour; to make a fuss; to kick up a fuss;
5: to lose one's cool; to panic; to act flustered;
6: to feel tense; to be uneasy; to be excited
Out-dated kanji, Godan verb with gu ending, Intransitive verb 
醂す さわ 1: to remove the astringent taste from persimmons;
2: to soak in water; to steep in water;
3: to matte (with black lacquer)
Godan verb with su ending, Transitive verb 
さわ marshy land
Noun 
さわ edge of a swamp
Noun 
触り さわ 1: feel; touch;
2: impression (of a person);
3: most impressive passage; punch line
Noun 
障り さわ hindrance; obstacle; harm; bad effect; sickness
Noun 
サワガニ Japanese freshwater crab (Geothelphusa dehaani)
Noun, Usually written using kana alone 
サワシバ heartleaf hornbeam (Carpinus cordata)
Noun, Usually written using kana alone 
たくさん many; a lot; much
Common word, Na-adjective, Adverb, Noun, Usually written using kana alone 
おもだか threeleaf arrowhead (Sagittaria trifolia)
Noun, Usually written using kana alone 
さわがに Japanese freshwater crab (Geothelphusa dehaani)
Noun, Usually written using kana alone 
爽々 さわさわ 1: (Usually written using kana alone) rustling;
2: refreshing;
3: clearly
Adverb 
爽爽 さわさわ 1: (Usually written using kana alone) rustling;
2: refreshing;
3: clearly
Adverb 

Found 50 words. Page one, two

You can also

Look up kanji details for 沢 さわ.

Try a Yahoo Jisho search for 沢 さわ .
Try a Goo Jisho search for 沢 さわ .
Try a Google search for 沢 さわ .