はいご背後haigo
1.

The area located at the back or behind an object or person, often referred to in contexts suggesting movement or action from that position.

2.

The hidden or underlying aspects of a situation that are not immediately visible, typically implying a connection to deeper or more complex relationships or influences.

Example:

「びっくりさせないでよ」と彼女は彼が背後に近づいた時言った。

せなか背中senaka
1.

The central part of the back, specifically the area surrounding the spine, often referring to the physical back itself.

2.

The rear side of an object or entity, typically opposite to the front.

3.

The side of an animal that is opposite to its chest or belly, often used to indicate direction or positioning.

4.

A term describing a relationship or situation where two parties are facing away from each other, suggesting a lack of harmony or connection.

Example:

このブラウスはボタンが背中にある。

せお背負seouしょ背負shou
1.

To physically lift and transport an object or person by placing it on one's back, often implying a burden or load that requires effort to manage.

2.

To take on a significant responsibility or difficult task, accepting the challenges and consequences that come with it, often in a personal or emotional sense.

3.

To position oneself in a way that allows something to be directly behind or supported by one's back, creating a space or barrier.

4.

To exhibit an attitude of superiority or distinction, believing oneself to be above others or in a unique situation.

Example:

彼女は背中にリュックサックを背おっている。

se
1.

The side of the body opposite the abdomen, commonly referred to as the back, where the spine is located; it's the area that supports the torso and connects to the neck.

2.

The rear side or position in relation to a reference point, often indicating a direction or orientation away from what is in front.

3.

The measurement of height in a vertical sense, often used in contexts comparing stature between individuals.

4.

A feature of mountains or hills, specifically the ridge or backbone-like formation that rises above the surrounding landscape.

5.

The binding region of a book, where the pages are held together, often covered by a protective layer that serves both functional and aesthetic purposes.

Example:

首やに太陽が暑く照りつけた。

せすじ背筋sesujiはいきん背筋haikin
1.

The group of muscles located along the spine that contribute to posture and movement of the upper body.

2.

The central vertical line running along the back, associated with the spine and its supporting structures, often referred to when discussing alignment and body mechanics.

3.

The tension or sensation that can be felt in the back during moments of fear or anxiety, reflecting a physiological response to stimuli.

Example:

それを見てうれしくて背筋がぞくぞくした。