"musing" in the noun sense
1. contemplation, reflection, reflexion, rumination, musing, thoughtfulness
a calm, lengthy, intent consideration
"musing" in the verb sense
1. chew over, think over, meditate, ponder, excogitate, contemplate, muse, reflect, mull, mull over, ruminate, speculate
reflect deeply on a subject
"I mulled over the events of the afternoon"
"philosophers have speculated on the question of God for thousands of years"
"The scientist must stop to observe and start to excogitate"
"musing" in the adjective sense
1. brooding, broody, contemplative, meditative, musing, pensive, pondering, reflective, ruminative
deeply or seriously thoughtful
"Byron lives on not only in his poetry, but also in his creation of the `Byronic hero' - the persona of a brooding melancholy young man"
Source: WordNet® (An amazing lexical database of English)
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