Synonyms for the word "TRANS JPN SOC STRENGTH FRACT MATER", which appears to be an abbreviation or a technical term, are not readily available as it does not represent a commonly used word or phrase. Nevertheless, this term seems to convey aspects related to material strength and fracture characteristics within a sociopolitical context in Japan. In such cases, it is uncommon for there to be direct synonyms for such specific terms. To obtain a clearer understanding, it is recommended to refer to relevant scientific or engineering literature where specialized jargon is discussed, as it may shed light on the meaning and provide alternative terminology within the field.