How to say "connectivity" in Japanese

• 接続性せつぞくせい
  nounConnectivity in the everyday technical sense: how well devices or networks are able to connect. This is the word you want for internet or network connectivity.
• コネクティビティ
  nounThe katakana loanword, covering the same network and device sense as 接続性; writers reach for it when they want the English term itself, as in technical or business contexts.
• 連結性れんけつせい
  nounConnectivity as the state of being linked or joined into one whole — how strongly parts are tied together. In mathematics it corresponds to connectedness, as of graphs or spaces.
• 結合性けつごうせい
  nounReally the property of binding or coupling together, and in mathematics and logic it means associativity. For network or general connectivity it is seldom the word you want.

For network or device connectivity choose 接続性 or the loanword 「コネクティビティ」; 連結性 expresses being linked into one whole, including mathematical connectedness; 結合性 really means associativity or binding and is only marginally 'connectivity'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 接続性せつぞくせいconnectivity
• コネクティビティconnectivity
• 連結性れんけつせいconnectivity
• 結合性けつごうせいassociativity