Synonyms of the word

firstly

• adv. (formal) In the first place; before anything else; first.

first

• adj. Preceding all others of a series or kind; the ordinal of one; earliest.
• adj. Most eminent or exalted; most excellent; chief; highest.
• adv. Before anything else; firstly.
• n. (uncountable) The person or thing in the first position.
• n. (uncountable) The first gear of an engine.
• n. (countable) Something that has never happened before; a new occurrence.
• n. (countable, baseball) first base.
• n. (countable, Britain, colloquial) A first-class honours degree.
• n. (countable, colloquial) A first-edition copy of some publication.
• n. A fraction of an integer ending in one.
• n. (obsolete) Time; time granted; respite.

foremost

• adj. first, either in time or in space.
• adj. of a higher rank or position; paramount.
• adj. (nautical) closest to the bow.
• adv. in front.
• adv. prominently forward.