biró,
pl. babiro (class 9a/10a (2) : - / - (ba-) : plural from context (or informal/modern ba-), not with n-/m-)
biló,
pl. babilo (class 9/2 : - / ba-)not official plural (informal)
biló,
pl. babilo (class 9a/10a (2) : - / - (ba-) : plural from context (or informal/modern ba-), not with n-/m-)
biró,
pl. babiro (class 1a/2 : - / ba-)not official plural (informal)
office, desk
lover, wife on the side (2ième bureau = "second office")