Answer:
沼 SHOU, numa - swamp, marsh
畑 hatake - cultivated field
樹 JU - tree, bush
溝 KOU, mizo - ditch, gutter, groove
瓶 BIN - bottle
All take 大 (DAI, oo(kii) - big) in front to make a word, but only 樹 uses the "Tai/Dai-" reading (Daijuu); the others are all "Oo":
大沼 OoNuma - A placename or family name
大畑 OoBata, OoBatake - A place name or family name
大樹 Daijuu - a large tree
大溝 OoMizo - A place name or family name
大瓶 Oobin - a large bottle (of beer etc.)