Some five letter words with O as the second and third letter are:
Examples of five letter words that end in "o" are:AlamoaudiobanjobingobongobravoburrocameocargoCongocuriodingodittofolioforgogeckoguanogumbohelloigloojumbokazoolassolimbolottomangomatzomomboMongomottonachooutdopatiopestophotopianopolioradioratiorhinorodeoRomeotabootangotempotorsovideoYahoo
gusto
hobo
Bongo
AlamoAmigoAminoAudio
natio
Some four letter words that end with "o" are:zerohaloherohobointojudokiloalsoaltoautoechomemoontopolosilosolotacotarotrioundoveto
Five letter words that start and end with letter O are outdo and outgo.
Ratio
tornadotorpedo
Cameo
2 five-letter words ending in "o," Spanish derivation with Latin roots, lassos are used in rodeos.