ぶったい物体buttai
1.

An entity that possesses a definite physical shape and occupies a space, often referred to in contexts involving both known and unknown items.

2.

A tangible item that can be perceived through the senses, characterized by its distinct form and spatial presence.

3.

An object that may exist without sentience or consciousness, existing purely in terms of its physical characteristics and measurable properties.

Example:

例えば、ペパーバーグは緑色のもくせいの留めくぎと赤色の紙の三角形のような物体を見せる。

もったい勿体mottaiもったい物体mottai
1.

A sense of gravitas or solemnity in one's demeanor, often suggesting an air of dignity or significance in behavior or attitude.

2.

The tendency to present oneself as having greater importance or value than is apparent, often implying an unnecessary show of superiority or pretentiousness.

3.

A feeling of regret or wastefulness when something is perceived to be used ineffectively or dismissed, indicating that it could serve a more meaningful purpose.

4.

The quality of appearing to be more significant or valuable than one truly is, often associated with a deliberate display of importance or an inflated sense of self-worth.

みかくにんひこうぶったい未確認飛行物体mikakuninhikoubuttai
1.

A term used to describe any aerial phenomenon that cannot be identified by the observer or relevant authorities, often associated with the presence of extraterrestrial or advanced craft.

2.

An object observed in the sky that remains unrecognized, sparking curiosity and speculation about its origin and nature.

3.

A label applied to various sightings of flying objects that do not conform to known aircraft or natural atmospheric phenomena, often leading to investigations and discussions about their potential implications.

4.

A phrase that captures the mystery surrounding phenomena in the sky that elude classification, often invoking themes of conspiracy, fascination with the unknown, and considerations of life beyond Earth.

Example:

「U.F.Oとは何を表しているの」「未確認飛行物体のことだと思う」