Foster

Meaning & origin

Foster is a boy's name of English origin, traditionally used in Christian families. The name means "Forest keeper, from Old English forester. A occupational surname turned first name, evoking woodland guardianship" and belongs to the Nature cluster — names drawn from the natural world — earth, water, sky.

Beyond its Christian heritage, Foster is also used in Atheist traditions, reflecting how this name has traveled across cultures.

Common among British, American, European families, Foster carries cultural weight that goes beyond its dictionary definition — it's a name with a story and a community.

Numerology of Foster

Numerology assigns each name a single-digit destiny number by summing its letter values. Different schools use different mappings — NameRoot computes both so you can see how Foster resonates in either tradition.

How Foster sounds

NameRoot scores the phonetic fit of every name against the sound of your last name. The pronunciation of Foster breaks down into 6 phonemes: /F-AO-S-T-EH-R/. In the app, you'll see how those sounds flow with your family name across rhythm, stress, and consonant clusters.

Nicknames

Common affectionate forms of Foster — useful for everyday family conversation, early childhood, or as standalone given names themselves.

The six signals, applied to Foster

NameRoot scores every name across six independent dimensions. Here's how Foster maps to each — install the app to see the full compatibility score for your specific family.