"younger" in the adjective sense
1. young, immature
used of living things especially persons) in an early period of life or development or growth
"John Junior"
"John Smith, Jr."
"young people"
2. new, young
of crops) harvested at an early stage of development before complete maturity
"new potatoes"
"young corn"
3. youthful, vernal, young
suggestive of youth vigorous and fresh
"he is young for his age"
4. young
being in its early stage
"a young industry"
"the day is still young"
5. unseasoned, untested, untried, young
not tried or tested by experience
"unseasoned artillery volunteers"
"still untested in battle"
"an illustrator untried in mural painting"
"a young hand at plowing"
Source: WordNet® (An amazing lexical database of English)
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