Definitions

1. noun

a brother or sister, especially a younger one.

“She’s close to her sib, who is two years her junior.”

2. noun

a sibling, especially in the context of twins.

“The twins are identical sibs, making it difficult to tell them apart.”

3. verb

to produce or have offspring, especially of plants or insects.

“The plant sibs seeds every spring.”

4. verb

to give birth to or produce offspring, especially of fish or other aquatic animals.

“The fish sibs eggs in the coral reef.”