LO

LO (plural LOs)

1. (electronics) Initialism of local oscillator.
2. (on some gear levers) Abbreviation of low (“low gear or low range”).

   Antonyms: HI (high); OD, O/D, O.D. (overdrive)

3. Initialism of loved one.
   • 1999 August 12, [email protected], “Health insurance options?”, in alt.support.alzheimers‎^[1] (Usenet), archived from the original on 28 June 2025:

     Looking for health insurance for my LO. Too young for Medicare, not Medicaid qualified. With a pre-existing condition of dementia I've only been able to find one policy (Blue Cross) at about $1000/month (their one high-risk policy).

   • 2008, Starr Calo-oy with Bob Calo-oy, “Introduction: ‘The Unsung Hero’”, in Caregiving Tips A-Z: Alzheimer’s & Other Dementias, San Antonio, Tex.: Orchard Publications, →ISBN, pages 1–2:

     When an elderly LO has deteriorated in his health to the point that he must move in with one of his adult children, many lives are changed forever.

   • 2022, Torri L. Fisher, “Physical Activities”, in Forget Me Not: A Caregiver’s Guide to Early-Onset Alzheimer’s Disease, iTreatMyself, →ISBN, chapter 8 (Creating Experiences), page 137:

     Try suggesting yoga to your LO and wait to see if they would be up for the idea.

4. (Internet slang) Initialism of little one (“one's child”).

LO

1. Initialism of London Overground.

• -ol, OL, Ol., ol, ol'

Initialism of landsorganisasjonen.

LO

1. Landsorganisasjonen i Norge (“Norwegian Confederation of Trade Unions”)

LO ? (genitive LO:s)

1. Swedish Trade Union Confederation; abbreviation of Landsorganisationen

• o.l.