Correct spelling

seizing

Correct spelling, explanation: seize is an odd-looking word, and it’s because of its French origin. Originally, the word was spelled seizir, but of course, it became adjusted to English, so it changed to seize, and then when adding an -ing suffix, it’s spelled seizing, as the silent ending e is removed to make place for -ing.

Definition of seizing:
verb
1. to grasp or catch something, take a hold of something, literally and figuratively
Only by suddenly seizing the handle I managed not to fall down.
2. to understand something
I’ve always had trouble seizing algebra in school.
3. to forcibly take something into possession
We couldn’t stop the enemy troops from seizing the island.

Idioms with seizing:
seize the day/moment – to enjoy and appreciate the current moment
I spent the holidays reading, traveling, seizing every day, and enjoying my free time.
seize the bull by the horns – to take on a challenge directly
I was terrified of asking my boss for a raise but I seized the bull by the horns, talked to him, and he was very impressed.


Incorrect spelling

siezing

Incorrect spelling, explanation: siezing is an incorrect word, because, in order for it to be a functional word, the base word would have to be sieze and such a word does not exist in English. The pronunciation of seize is a little complicated because of the French origin, but it has to stay true to its original form as seizir so it can be understood.