Idiom lo and behold (Definition of lo from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) Lo (Travis Birkett), a very creepy creation, is like a giant crawling worm with arms and sharp teeth. While he's supposedly enslaved by Roberts' spell, he spends most of the time teasing Roberts, trying to tempt him outside of his protective pentagram. The word lo functions primarily as an interjection, capturing attention or emphasizing surprise. However, in its informal use as an abbreviation of low, it can function as an adjective or part of a compound modifier. The meaning of LO is —used to call attention or to express wonder or surprise. How to use lo in a sentence. The programme made great use of time-lapse photography and of the nearest available metaphor: lo, the white blanket later became 'a white duvet'. This disambiguation page lists articles associated with the title Lo. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. LO definition: look! see! (frequently used in Biblical expressions; now usually used as an expression of surprise in the phraselo and behold ). See examples of lo used in a sentence. What does LO stand for? LO abbreviation. Define LO at AcronymFinder.com. Lo usually gives the adjective an abstract quality (as above). It can also refer to a thing, but el is more common in this case, e.g. el / lo blanco de los ojos (“the white of the eye”). Define lo. lo synonyms, lo pronunciation, lo translation, English dictionary definition of lo. interj. Used to attract attention or to show surprise. American Heritage® Dictionary of the English Language, Fifth Edition.