Anatomy of a Ukulele
Ukuleles are usually shaped like small guitars, but other shapes are also common (the pineapple shape is popular). The shape of the ukulele doesn’t usually make a great deal of difference to the sound, but some shapes — the Flying-V, triangular ukuleles, and cricket bat-shaped electric ukuleles come to mind — are harder to play, so don’t choose one of the wackier shapes for your first uke.
Ukuleles share many part names with people parts — body and neck, for instance.

A typical ukulele.
The two sound-producing parts are
Body: The body is the main part and where the sound is produced. The body is divided into three main parts: soundboard or top (the front of the uke), the back, and the sides. The soundboard is the most important part, which is why you often see ukuleles with expensive woods used for the top and less expensive wood, or even plastic, on the back and sides.
Strings: Nowadays, ukulele strings are made from synthetic fibers (with ugly names such as fluro-carbon and nylgut) that combine the best features of the catgut and nylon that uke strings used to be made from.
The rest of the ukulele’s parts are
Bridge: The bridge is attached to the front of the ukulele and holds the strings at the bottom end. Two main types of bridge exist: one where you tie the strings to the bridge, and one where you knot the end of the string and thread it through a slit.
Saddle: The saddle is the thin, usually white, piece that sticks up out of the bridge. The strings rest on top of the saddle.
Soundhole: This round hole on the front of your ukulele lets the sound out. The soundhole is usually placed under the strings, but not always. The placement of the soundhole doesn’t particularly impact on the sound.
Neck: The neck is the long bit that sticks out of the body. Ukulele necks are lighter and weaker than similar instruments, such as guitars and mandolins, because they’re designed for nylon strings. So don’t be tempted to put steel guitar strings on your uke; you’ll snap the neck.
Fretboard: The fretboard is the strip of wood that runs along the neck just behind the strings. When you’re playing your ukulele, you press the strings down against the fretboard to produce notes.
Frets: The frets are strips of metal that go vertically across the fretboard. They mark out the different pitches of the notes. The higher up the fretboard, the higher the note is musically.
Fret markers: Fret markers are the dots on the fretboard. They make it easier for you to spot which fret is which farther up the neck. Ukuleles have fret markers on the 5th, 7th and 10th frets (and also at the 12th and 15th if the fretboard extends that far).
This arrangement can be a little confusing for guitar players who pick up a ukulele, because guitars have a marker at the 9th fret rather than the 10th.
Nut: The nut marks the end of the fretboard. The strings sit on it as they go from the fretboard to the headstock. It forms the end of the section of the strings that you play.
Headstock: The headstock is located at the end of the fretboard and is there to hold the tuners. But its main function is as an advertising spot for the uke maker.
Tuners: Tuners are attached to the headstock and hold the strings of the ukulele. You change the tuning of your strings by twiddling them. Two types of tuner exist:
Friction tuners: Traditionally, ukuleles have friction tuners, which stick out behind the ukulele and hold the strings in tune by friction alone.
If your ukulele has friction tuners, you may need to tighten the screws that hold them to the headstock. If your ukulele goes out of tune as soon as you’ve tuned it, check the tuners. If you can see them unfurl, tighten the screw.
Geared tuners: Some ukuleles have geared tuners, which stick out from the side of the headstock like ears (the type of tuners you get on guitars).
Geared tuners make fine-tuning easier and help your uke hold the tuning better. So unless a ukulele comes with high-quality friction tuners, your best bet is to buy one with geared tuners.

Geared uke tuners.

Ukulele Glossary
aDF#B tuning
A tuning method in which each string is tuned two frets higher than the standard gCEA tuning, producing a higher pitch and closer tuning to a guitar.

Ukulele Glossary
barre chord
A chord played with a finger pressed across more than one string.

Ukulele Glossary
bridge
The part of the ukulele attached to the front that holds the strings below the soundhole. The two main types of bridge are one where you tie the strings to the bridge, and one where you knot the end of the string and thread it through a slit.

Ukulele Glossary
capo
A device that straps around the neck of a ukulele and holds down all the strings.

Ukulele Glossary

Ukulele Glossary
chord
Two or more notes played simultaneously.

Ukulele Glossary
chord diagram
A graphic that shows where to place your fingers in order to play a chord on a stringed instrument.

Ukulele Glossary
chord family
A group of six chords with each containing notes from the same scale.

Ukulele Glossary
fret
n. A strip of metal placed vertically across the fretboard of a stringed instrument that marks different pitches of the notes. The higher up the fretboard, the higher the note is musically. v. to press down on the strings of a stringed instrument to play certain notes.

Ukulele Glossary
fret marker
A dot on the fretboard of stringed instrument that makes it easier to locate frets. Typically, ukuleles have fret markers on the 5th, 7th, and 10th frets.

Ukulele Glossary
fretboard
The strip of wood that runs along the neck of a stringed instrument just behind the strings.

Ukulele Glossary
fretted string
A string you play while holding it down at a certain fret.

Ukulele Glossary
friction tuner
A mechanism for tuning stringed instruments in which you turn a peg that tightens or loosens the strings and keeps the strings in tune through friction.

Ukulele Glossary
gCEA tuning
The current most popular method of ukulele tuning, in which the fourth string is tuned to a high g note, and the subsequent strings are tuned to C, E, and A, respectively.

Ukulele Glossary
geared tuner
A guitar-type tuning mechanism in which the tuning pegs are geared. Geared tuners allow for more precise tuning than friction tuners.

Ukulele Glossary
hammer-on
A technique in playing stringed instruments in which you bring a finger down on a string sharply and swiftly to sound a note.

Ukulele Glossary
headstock
The place at the end of the fretboard of a stringed instrument that holds the tuning pegs. (It shows the logo of the instrument’s maker.)

Ukulele Glossary
low-G tuning
A ukulele tuning method in which you replace the high, thin g-string with a low, fat G-string, then tune the other strings to C, E, and A.

Ukulele Glossary
moveable chord
A chord in which you fret every string.

Ukulele Glossary
neck
The long piece that sticks out of the body of a stringed instrument.

Ukulele Glossary
nut
The piece the strings sit on as they go from the fretboard to the headstock.

Ukulele Glossary
open chord
A chord with at least one string played open, or not fretted.

Ukulele Glossary
open string
A string you play without fretting.

Ukulele Glossary
pick-up
A device that detects sound and turns it into electrical impulses which can then be amplified.

Ukulele Glossary
re-entrant tuning
A method of tuning in which the two outside strings produce the high notes, in contrast with typical low-to-high tuning.

Ukulele Glossary
root
The first chord in a chord family.

Ukulele Glossary
saddle
The thin, usually white piece that the strings rest on near the soundhole.

Ukulele Glossary
scale length
The length of the part of the string played.

Ukulele Glossary
soundhole
The round hole on the front of a stringed instrument that lets the sound out.

Ukulele Glossary
staff
A set of five horizontal lines and four spaces that represent musical notes.

Ukulele Glossary
standard notation
A method of representing the melody lines of songs on staves.

Ukulele Glossary
Swiss army strumming pattern
A down, down-up, up-down strumming rhythm.

Ukulele Glossary
tablature; tab
A method of representing musical notes for stringed instruments with lines and dots, indicating which string to play and which fret to use.

Ukulele Glossary
time signature
Musical notation that indicates the number of beats in a measure and the value of each note.

Ukulele Glossary
tremolo picking
Picking the same note repeatedly at a rapid tempo to produce a fluctuation in volume. This method allows you to play very long notes that otherwise would stop sounding.

Ukulele Glossary
tuner
1. The part of a stringed instrument that holds the strings. 2. A device used to calibrate the strings of an instrument to the correct pitch.

Ukulele Glossary
vibrato
A warble added to the end of a note accomplished by repeatedly picking a string very quickly, varying the pitch.