Words about words

Something is swollen if it is larger than it should be. Body parts that are swollen are usually filled with fluid, and can be very painful. The man in the picture has a swollen ankle.

Swung is the past tense of swing, for example "the door swung shut".

Something is symmetrical if it exhibits symmetry.

Talking is making words with your mouth and tongue. When babies are born they cannot talk, and they gradually learn how to talk in the first few years of their life.

An animal is tame if it is not afraid of people, and is friendly to them. Tame animals generally won't try to hurt people or run away.
The opposite of tame is wild, and a similar word to tame is domesticated.

Tangy means having a strong, sharp taste, like lemon or lime. It is often used to describe flavors that feel bright and a little sour.

You might find tangy tastes in foods and drinks such as yogurt, salad dressing, citrus fruits, and lemonade.

Something made from metal is tarnished if it has a layer of a dull, colored substance on it instead of being bright, shiny and reflective.
Tarnish is a different color on different kinds of metal. silver tarnish is black and copper tarnish is green. Some metals do not tarnish, instead they rust, which can eat away all of the metal over time instead of just leaving a thin coating on the surface.

If food is tasty, you enjoy eating it. It is most often used to describe something with a strong but delicious flavor.

Tedious is another word for boring or dull. The woman in the picture looks like she is sick of doing something tedious.

Something is temporary if it will only last for a short time. How long a "short time" is depends on the nature of the temporary effect. Some temporary effects may only last a few seconds, some temporary things may last a few years.
The temporary toilets in the picture are there while the permanent toilets are being repaired.