63 entries under extend topic. ×

1
multiply(verb, increase, open, develop)
1
mushroom(verb, increase, open, develop)
1
open up(verb, expression, open, spread)
1
pad(verb, increase, open, develop)
1
piggyback(verb, increase, open, develop)
1
prolong(verb, increase, open, develop)
1
protract(verb, increase, open, develop)
1
puff up(verb, expression, increase, open, develop)
1
pyramid(verb, increase, open, develop)
1
slap on(verb, expression, increase, open, develop)
1
soup up(verb, expression, increase, open, develop)
1
stretch(verb, increase, open, develop)
1
swell(verb, increase, open, develop)
1
tack on(verb, expression, increase, open, develop)
1
thicken(verb, increase, open, develop)
1
unravel(verb, increase, open, develop)
1
upsurge(verb, increase, open, develop)
1
wax(verb, increase, open, develop)
1
widen(verb, increase, open, develop)
0
add to(verb, expression, expand, broaden)
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APASmart Define. (2016). open out thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/open_out/thesaurus/synonyms
ChicagoSmart Define. 2016. "open out thesaurus" https://smartdefine.org/open_out/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, open out thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/open_out/thesaurus/synonyms>.
MLASmart Define. "open out thesaurus" 14 March 2016. Web. 24 September 2026. <https://smartdefine.org/open_out/thesaurus/synonyms>