1
second(noun, substitute)
1
second string
1
secondary
1
sign
1
spare
1
stand in
1
stopgap(substitute, replacement, alternative, alternate, backup)
1
substitution
1
succedaneum(replacement, alternative, alternate, backup, surrogate)
1
successor(noun, cover, reserve, replacement, alternative)
1
supplanter(replacement, alternative, alternate, backup, surrogate)
1
supply(replacement, alternative, alternate, backup, surrogate)
1
support
1
temporary expedient(expression, replacement, alternative, alternate, backup)
1
third string
1
token
1
vice-president
0
accompaniment
0
acquaint
0
address
11 years ago|2.5k views|share |citing 
APASmart Define. (2015). fill-in thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/fill-in/thesaurus/synonyms
ChicagoSmart Define. 2015. "fill-in thesaurus" https://smartdefine.org/fill-in/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, fill-in thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fill-in/thesaurus/synonyms>.
MLASmart Define. "fill-in thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/fill-in/thesaurus/synonyms>