せいsei
1.

Referring to objects or items that have been created or manufactured through a specific process or craftsmanship, often implying a level of quality or artistry in their production.

2.

Indicating the act of fabrication or assembly, highlighting the transition from raw materials to a finished product, with an emphasis on the method of creation.

3.

Denoting items that are results of industrial or artistic production, typically suggesting a connection to a particular technique, style, or geographical origin.

Example:

これらの箱はプラスチックです。

せいさく製作seisaku
1.

The process of creating items or products using tools and machines, often involving a specific design or mold, typically in large quantities.

2.

The act of employing instruments or machinery to produce tangible goods, contrasting with the creation of artistic works or broadcasts, which falls under a different term.

3.

The systematic and organized method of producing goods through mechanical means, usually aimed at efficiency and mass production.

4.

A term that indicates the fabrication of physical objects, emphasizing the use of technology and industrial processes rather than artistic or creative production.

Example:

この工場では自動車の部品を製作している。

せいぞう製造seizou
1.

The process of transforming raw materials or unfinished goods into finished products through various methods of processing and assembly, often on a large scale.

2.

The act of creating or formulating items, including written works or poetry, by applying artistic or intellectual efforts to produce new content.

3.

The responsibility imposed on producers or manufacturers for damages resulting from defects in their products that cause harm to consumers, established as a legal obligation in response to consumer safety and protection.

Example:

その工場は玩具を製造している。

てつせい鉄製tetsuseiてっせい鉄製tessei
1.

Referring to objects or structures that are constructed using iron as the primary material, highlighting the durability and strength associated with iron products.

2.

Describing an item that is produced from iron, indicating both the composition and the potential industrial or functional qualities attributed to iron-made goods.

Example:

この橋は鉄製です。

とくせい特製tokusei
1.

A product that is made with exceptional care and unique qualities, often tailored for a specific occasion or purpose.

2.

An item that has been specially crafted or prepared to stand out from ordinary alternatives, reflecting a higher level of craftsmanship or attention to detail.

3.

A distinctive creation that is manufactured specifically for a particular use, setting it apart from standard or mass-produced items.

Example:

私の特製うさぎシチューです。