2
lean-to(noun, shelter, extension, wing, porch)
2
leap
2
lift(noun, advance, increase, improvement, enhancement)
2
merger(noun, raise, rise, growth, capture)
2
non-essential
2
obtainment(noun, gain, achievement, recovery, attainment)
2
option(noun, increase, extra, enlargement, something)
2
ornament(noun, accompaniment)
2
pendant(noun, rest, match, balance, extra)
2
procuration(noun, gain, achievement, recovery, attainment)
2
purchase(noun, gain, achievement, recovery, acquisition)
2
putting together
2
raising(noun, advance, increase, development, boost)
2
rider(noun, increase, extra, qualification, supplement)
2
rundown
2
shed
2
side note
2
spread(noun, advance, increase, raise, delay)
2
spreading(advance, increase, progress, development, growth)
2
step-up(noun, advance, increase, raise, rise)
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APASmart Define. (2015). addition thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/addition/thesaurus/synonyms
ChicagoSmart Define. 2015. "addition thesaurus" https://smartdefine.org/addition/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, addition thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/addition/thesaurus/synonyms>.
MLASmart Define. "addition thesaurus" 22 December 2015. Web. 23 September 2026. <https://smartdefine.org/addition/thesaurus/synonyms>