sdo

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|astronomy}} {{initialism of|en|[[scattered disc|scattered-disc]] [[object]]}}.
2. {{lb|en|rail transport}} {{initialism of|en|selective door operation}}.
3. {{lb|en|military}} {{initialism of|en|[[squadron]] [[duty]] [[officer]]}}.
4. {{init of|en|w:social dominance orientation}}.
5. {{init of|en|[[special]] [[development]] [[order]]}}

Proper noun

1. {{lb|en|space|US}} {{initialism of|en|[[solar|Solar]] [[dynamics|Dynamics]] [[observatory|Observatory]]}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.