Denshi Jisho — Online Japanese dictionary

まつ 1: pine tree;
2: highest (of a three-tier ranking system)
Common word, Noun 
ねず Juniperus rigida
Noun, Usually written using kana alone 
みる Codium fragile (species of seaweed)
Noun, Usually written using kana alone 
みる Codium fragile (species of seaweed)
Noun, Usually written using kana alone 
おまつ black pine
Noun 
こまつ small pine; young pine
Noun 
あかまつ Japanese red pine (Pinus densiflora); Japanese umbrella pine; tanyosho pine
Common word, Noun 
かどまつ New Year's pine decoration
Common word, Noun 
わかまつ young pine; New Year's symbolic pine decoration
Common word, Noun 
いちまつ checked (pattern)
Noun 
おいまつ old pine tree
Irregular okurigana usage, Noun 
からまつ (Japanese) larch (Larix leptolepis, Larix kaempferi)
Noun, Usually written using kana alone 
くろまつ black pine
Noun 
こしょう old pine
Noun, Obscure term 
とどまつ Sakhalin fir (Abies sachalinensis)
Noun, Usually written using kana alone 
はままつ Hamamatsu (city)
Noun 
べいまつ common Douglas fir (Pseudotsuga menziesii)
Noun 
蝦夷 えぞまつ Yezo spruce (Picea jezoensis); Jezo spruce
Noun, Usually written using kana alone 
老い おいまつ old pine tree
Noun 
落葉 からまつ (Japanese) larch (Larix leptolepis, Larix kaempferi)
Noun, Usually written using kana alone 
二の にのまつ middle pine tree to a noh stage (of the three placed in front of the bridge walkway)
Noun 
這い はいまつ creeping pine
Noun 
きょしょう big pine tree
Noun, Obscure term 
すいしょう Codium fragile (species of seaweed)
Noun, Usually written using kana alone 
せいしょう green pine
Noun 

Found 50 words. Page one, two

You can also

Look up kanji details for *松.

Try a Yahoo Jisho search for *松 .
Try a Goo Jisho search for *松 .
Try a Google search for *松 .