Words about words

A trickle is a thin stream of water. A trickle is slightly more than a drip but much less than a full stream of water. The waterfall in the picture is only trickling because there hasn't been much rain.
A trickle is often used to describe a small amount of something passing by, as in "he was earning a trickle of money from his second job".

Trod is the past tense of tread, for example "he trod in some dog poo".

You tuck something in when you either put it into a small place, for example "I tucked the ticket into my pocket" or by putting the loose ends of something away, for example "he tucked his shirt in".
The man in the picture is tucking his wife into bed because she is sick.

When you tug on something, you pull very hard to move it.

You turn when you change direction. The boat in the picture is turning right.

You twiddle with something by fiddling with it and turning it around.

It most often refers to you twiddling your fingers.

You type when you use your fingers to press letters on a keyboard. The letters you type then appear either on the paper in the typewriter or on the screen of the computer that you are using.
Typing is an alternative to writing.

Umami is one of the five basic tastes. It tastes like a savory, rich flavor.

Umami flavor is found in foods such as broth, cheese, mushrooms, tomatoes, and soy sauce. People notice it when food feels full and satisfying.

You uncork a bottle by removing the cork, usually with a corkscrew.

Underdone describes food that hasn't finished cooking. Sometimes food is underdone on purpose.