Ranked by relevance and common usage.
Keep "welkin" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "welkin" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "welkin", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "welkin" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
23 total sentences available.
Winds roll the waters, and the great seas rise. / Dispersed we welter on the gulfs. Damp night / has snatched with rain the heaven from our eyes, / and storm-mists in a mantle wrapt the light. / Flash after flash, and for a moment bright, / quick lightnings rend the welkin. Driven astray / we wander, robbed of reckoning, reft of sight. / No difference now between the night and day / e'en Palinurus sees, nor recollects the way.
Source: tatoeba (7009812)
He leaues the vvelkin vvay moſt beaten playne, / And rapt with vvhirling vvheeles, inflames the ſkyen, / With fire not made to burne, but fayrely for to ſhyne.
Source: wiktionary
The ſkye it ſeemes vvould povvre dovvn ſtinking pitch, / But that the Sea, mounting to th' vvelkins cheeke, / Daſhes the fire out.
Source: wiktionary
Come (Sir Page) / Looke on me vvith your VVelkin eye: […]
Source: wiktionary
Showing 4 of 23 available sentences.
Closest matches include firmament, heavens, aerosphere, air, atmosphere.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.