#O#
#o# or
#objeto# object, article
#obscuro# dark, obscure
#observar# to observe
#obstinación# f. obstinacy, persistence
#ocultar# to conceal, hide
#oculto# concealed, secret
#ocupar# to occupy
#ocurrir# to occur, happen
#ofensivo# offensive
#oído# ear; #decir al ——# to whisper
#oír# to hear, listen
#ojalá# would that, oh that
#ojo# eye
#olvidar# to forget; #—se a uno de# to forget
#once# eleven
#oponerse# to oppose, object
#oportuno# proper, fitting
#opuesto# p.p. irreg. of #oponer#
#oso# bear; #hacer el ——# to play the lover
#otro# other, another
#oye# indic. pres. 3rd pers. sing. and imperat. sing. of #oír#