The Meaning of mokuzai [木材] In Japanese
木材
もくざい
Romaji: mokuzai
N5
What does 木材 mean?
Translation and Meaning
lumber, timber, wood material
Definition
木材 means lumber or timber—the material derived from trees used in construction, carpentry, and manufacturing.
Type
noun (名詞)
Stroke Order
Meanings
- Primary meaning as a material: lumber or timber used in building, carpentry, and manufacturing
- Industrial and technical contexts often refer to 木材 as raw wood material rather than finished wood
- The term is distinct from 木 (wood in a living or general sense) and from 材木, another common term for timber
Etymology
木 (ki, tree/wood) + 材 (zai, material; lumber) combine to form 木材, a native Japanese compound meaning timber or lumber; there is no foreign loanword involved.
Composition
- 木: tree/wood—the core semantic field of the word
- 材: material; timber; the second element specifying the kind of material
Usage
Used in formal, technical, and commercial contexts to refer to the wood material in construction, manufacturing, and supply chain discussions; in casual speech, 木材 is less common and speakers may say 木 or 材木 depending on emphasis.
💡 Tips
Mnemonic: visualize the tree 木 as the source and 材 as the material; together they form 木材, the material derived from a tree used in construction.
Variations
- 材木 (zaimoku) — lumber, timber; common in construction contexts
- 木質材料 (mokushitsu zairyō) — wood-based material; more technical
Example Phrases
-
木材を 買って 安い 店を 探して 家の 棚を 作ったMokuzai o katte yasui mise o sagashite ie no tana o tsukuttaI bought lumber and looked for a cheap store to make a shelf for the house.Lista:
- 木材を (mokuzai o) – lumber (object)
- 買って (katte) – buying (te-form)
- 安い (yasui) – cheap
- 店を (mise o) – store (object)
- 探して (sagashite) – searching
- 家の (ie no) – home’s
- 棚を (tana o) – shelf (object)
- 作った (tsukutta) – made
ここでは「木材」は材料として使われ、買う動作の対象になる。

