To attach or connect, as a consequence, condition, etc.
To connect, in a figurative sense; to ascribe or attribute; to affix; with to.
To cause to become greater in size, amount, degree, etc.; add to; augment
Find another word for subjoin. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for subjoin, like: append, postfix, suffix, join, affix, annex, attach and increase.