a

NOUN /eɪ/
1 LETTERS · STARTS WITH A

a is a valid 1-letter word worth 1 points in Scrabble and 1 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1
1 =1 PTS
DOUBLE WORD → 2TRIPLE WORD → 3
MEANING

What does a mean?

NOUN · 7 SENSES
1

One of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose).

2

The blood group whose red cells carry the A antigen.

3

Any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes.

NARROWER
VITAMIN A2DEHYDRORETINOLRETINOLVITAMIN A1
4

The basic unit of electric current adopted under the Systeme International d'Unites.

“a typical household circuit carries 15 to 50 amps”

SYNONYMS
5

A metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation.

6

(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA.

SYNONYMS
BROADER
7

The 1st letter of the Roman alphabet.

AT THE BOARD

Anagrams of a

SAME TILES, DIFFERENT WORDS

Every anagram above uses exactly the same letters — tap one to see its meaning and score.