noun
oneness; unity; integrity; inclusion
Abstract noun denoting the quality of being a single, unified whole, often used in philosophical, organizational, or social contexts.
チームの一体性を高めるために、合宿を行った。
We held a training camp to strengthen the team's unity.
この政策は社会の一体性を損なう恐れがある。
This policy may undermine the integrity of society.
結束 implies solidarity or bonding among people, often in a group or team context. 一体性 is more abstract and can apply to concepts, systems, or societies.
Compound of 一体 (いったい, 'one body, unity') and the suffix 性 (せい, '-ness, -ity'), forming an abstract noun meaning 'oneness' or 'integrity'.