ねずみnezumiねずnezuネズミnezumi
1.

A small, agile mammal belonging to the rodent family, often found near human dwellings, known for its ability to reproduce rapidly and cause damage to food and property.

2.

A term used to describe a color that resembles a muted grayish tone, often with slight bluish or silver undertones.

3.

A metaphorical expression referring to someone who acts secretly or engages in deceitful behavior, akin to stealing or scheming.

4.

A reference to various traps or devices specifically designed to capture these small rodents.

Example:

猫がいなくなるとネズミたちが遊びだす。

りす栗鼠risuリスrisu
1.

A small mammal known for its agile movements in trees, characterized by a grayish-brown back with lighter spots, a white belly, and a bushy tail, commonly found in forests and consuming seeds and nuts.

2.

A member of the rodent family that is primarily diurnal and skilled at climbing, it varies in fur color with seasonal changes and geographic differences, typically living in coniferous forests from lowlands to subalpine regions.

3.

An adjective describing a horse coat color that is a blend of mouse gray and chestnut, also used to refer to the characteristic coloration of squirrels.

Example:

リスは枝の中に隠れた。

なまこ海鼠namakoかいそ海鼠kaiso海鼠koナマコnamako
1.

A marine animal belonging to the class Holothuroidea, characterized by a cylindrical shape, soft body, and the presence of numerous tentacles around its mouth, found on the sea floor where it feeds on tiny organisms.

2.

A type of sea creature known for its unique texture and various species, many of which are edible and utilized in traditional dishes, with some containing toxic substances in their body wall.

3.

A general term for a group of echinoderms found in the ocean, recognized for their distinct body structure that allows locomotion through tube feet along their underside.

4.

An ancient term for an echinoderm that highlights its culinary uses in Japanese cuisine, as it can be consumed raw or processed into various delicacies.

どぶねずみ溝鼠dobunezumiドブネズミdobunezumi
1.

A medium to large rodent that typically resides near sewage or water systems, characterized by a reddish-brown back and a grayish-white underbelly, known for being nocturnal and adept at swimming and diving.

2.

A term used to refer to a deceitful servant who engages in dishonest activities under the employer's notice, often seen as sly or cunning.

3.

A member of the rat family, originating from Central Asia and now found worldwide, encompassing various characteristics including diet, behavior, and habitat preferences.

Example:

ハツカネズミとドブネズミは異なる。

そけいぶ鼠径部sokeibu
1.

The area of the body located at the junction of the thigh and the lower abdomen, often associated with the passage of nerves and blood vessels.

2.

A specific anatomical region characterized by the presence of the inguinal canal, significant in both anatomical studies and medical examinations.

3.

The lower part of the torso adjacent to the top of the thigh, frequently referenced in discussions of human anatomy and medical conditions related to this part of the body.