The term 'extension' can be defined as a process of making something longer, wider, or larger. It can also refer to the act of continuing something for a longer period of time. In this crossword, the solutions for the term 'extension' include 'STRETCH', 'BRANCH', 'CIRCLE', 'RANGE', 'ELL', 'ADDING', 'DEVELOPMENT', 'ACCESSORY', 'CONTINUANCE', 'ACCESSION', 'ADDITION', 'CONNECTION', 'AUGMENTATION', 'ADDENDUM', 'ADJUNCT', 'AFFIX', 'APPENDAGE', 'APPENDIX', 'ATTACHMENT', 'ARM', 'CORD', 'LIMB', 'addon', and 'RENEWAL'. These words all refer to different ways of extending something, whether it be physically, mentally, or emotionally.