English adjective: firstborn | |||
| 1. | firstborn first in order of birth | ||
| Samples | The firstborn child. | ||
| Synonyms | eldest | ||
| Similar | first | ||
| Antonyms | last | ||
English noun: firstborn | |||
| 1. | firstborn (person) the offspring who came first in the order of birth | ||
| Synonyms | eldest | ||
| Broader (hypernym) | issue, offspring, progeny | ||