initial (n.)
- abecedarian
- aboriginal
- alpha
- alphabet
- amen
- antecedent
- autograph
- basic
- beginning
- budding
- character
- countersign
- early
- first
- formative
- fundamental
- gambit
- germinal
- inaugural
- inchoative
- infant
- initiative
- leading
- letter
- maiden
- mark
- monogram
- natal
- opening
- original
- pass
- permit
- pioneer
- primary
- prime
- primitive
- primitiveness
- sanction
- seal
- second
- sign
- support
- ur
- visa
- vise
- warrant
initial (v.)
- accept
- accredit
- affirm
- alphabetize
- approve
- authenticate
- authorize
- autograph
- capitalize
- certify
- character
- confirm
- cosign
- countersign
- endorse
- inscribe
- letter
- mark
- notarize
- pass
- permit
- pioneer
- prime
- ratify
- sanction
- seal
- second
- sign
- support
- transcribe
- transliterate
- undersign
- underwrite
- ur
- validate
- visa
- vise
- warrant
initial (adj.)
- abecedarian
- aboriginal
- alpha
- antecedent
- antenatal
- autochthonous
- basic
- beginning
- budding
- creative
- earliest
- early
- elemental
- elementary
- embryonic
- fetal
- first
- foremost
- formative
- fundamental
- germinal
- inaugural
- inceptive
- inchoate
- inchoative
- incipient
- infantile
- initiative
- initiatory
- introductory
- inventive
- leading
- letter
- maiden
- mark
- nascent
- natal
- opening
- original
- parturient
- pass
- postnatal
- pregnant
- prenatal
- primal
- primary
- prime
- primeval
- primitive
- procreative
- rudimentary
- seal
- second
- sign
- support
- ur
