# The seven letter word

Don't worry, I won't let you overflow.

Is anyone operating on you? I won't let you overflow by that.

Do you want to link yourself? I won't let you overflow by that.

Is there an expression of the unspecified? I won't let you overflow by that.

Is someone really crossing the line? I won't let you overflow by that.

Do you have some clefts? I will mend them and you won't overflow.

What am I?

Subtle Hint:

Do you want to answer for an action? I am the action.

Moderate Hint:

Just let me go. You are the content.

Decisive Hint:

One letter modified, I am a language.

• Either you’re perfect, special, or just nothing. Jan 15 '20 at 9:11
• I think the answer is rot13(Pybfher) but I don't have the mathematical knowledge to explain it so I don't want to write an answer that is based only on a hint.
– JS1
Jan 27 '20 at 11:37
• @JS1 Correct. You should search that on Wikipedia. Jan 27 '20 at 11:48

Guess based on the latest hint:

Closure (one letter away from Clojure which is a programming language)

Explanation:

Don't worry, I won't let you overflow.
Is anyone operating on you? I won't let you overflow by that.

A closure under an operation can even include unbounded sets as long as the specified operation always produces a member of that set

Do you want to link yourself? I won't let you overflow by that.

Transitive Closure makes a relation ("link yourself") transitive.

Is there an expression of the unspecified? I won't let you overflow by that.

Algebraic Closure is the set of roots of all polynomials ("expression of the unspecified").

Is someone really crossing the line? I won't let you overflow by that.

Closure as in Topology adds a boundary ("line") to a set.

Do you have some clefts? I will mend them and you won't overflow.

Convex Closure makes a set convex by adding points in its "clefts."

Hints 1 and 2 seems straight forward. As for hint 3:

Clojure is a programming language that run on the JVM (Java virtual machine).

• I feel that’s the answer too; If you don’t mind, may I improve your answer based on what I know in Math? I can explain each of the clues provided in the question. Or should I rather post it as a separate answer instead? Feb 5 '20 at 14:39
– JS1
Feb 5 '20 at 18:37
• Sure thing! Done. Feb 6 '20 at 2:00

My guess:

Modulus

Explanation:

A modulus will not allow its operands to overflow. Modular arithmetic allows basic arithmetic operations. All values from a modulus (mod $$x$$) are bounded (between 0 and $$|x| - 1$$), so no one can actually “cross the line.”

• If this isn't it, I'll be shocked.
– Avi
Jan 23 '20 at 14:21

I’m going to guess:

Warning, as in an error trap message in a computer program.

I think it is

Program.

As in

A computer program.

Because

Programs ensure that whatever errors you make, the buffer will not overflow.

It could be a

Barrier

Because

I don't have the knowledge yet to fit all of the clues, but a barrier can stop things from overflowing.

Language Hint: On Wikipedia,( https://en.wikipedia.org/wiki/Carrier_language ) Carrier is apparently spoken in BC, Canada.