This is the 1857th most frequent Japanese word.
松
Pine tree.
松 refers here to 'pine tree', describing the type of tree planted in the garden.
この庭には美しい松の木が植えられています。
There are beautiful pine trees planted in this garden.
松 is part of '門松' (kadomatsu), a traditional Japanese decoration using pine.
正月に門松を飾るのは日本の伝統です。
Decorating with kadomatsu during the New Year is a Japanese tradition.
松 appears as part of a proper noun, '松本' (Matsumoto), which is a surname common in Japan.