To sign one's initial(s), as an abbreviated signature.
Spatially first, placed at the beginning, in the first position; especially said of the first letter of a word.
Chronologically first, early; of or pertaining to the beginning, cause or origin.
A distinguished initial letter of a chapter or section of a document.
onset, part of a syllable that precedes the syllable nucleus in phonetics and phonology.
The first letter of a word or a name.
In plural, the first letter of each word of a person's full name considered as a unit.
To sign; to mark with one's signature as a token of consent or attestation.
To sign up to have copies of a publication, such as a newspaper or a magazine, delivered for a period of time.
To agree to buy shares in a company.
To pay money to be a member of an organization.
To contribute or promise to contribute money to a common fund.
To indicate interest in the communications made by a person or organization.
To believe or agree with a theory or an idea (used with to).
To pay for the provision of a service, such as Internet access or a cell phone plan.
To register for notifications about an event or similar.
To promise to give, by writing one's name with the amount.