As verbs the difference between guess and theorize

is that guess is to reach a partly (or totally) unqualified conclusion while theorize is to formulate theories, especially about some specific subject.

As a noun guess

is a prediction about the outcome of something, typically made without factual evidence or support.

As verbs the difference between guess and hypothecate

is that guess is to reach a partly (or totally) unqualified conclusion while hypothecate is to pledge (something) as surety for a loan; to pawn, mortgage.

As a noun guess

is a prediction about the outcome of something, typically made without factual evidence or support.

In obsolete terms the difference between guess and conclude

is that guess is to hit upon or reproduce by memory while conclude is to include; to comprehend; to shut up together; to embrace.

As verbs the difference between guess and conclude

is that guess is to reach a partly (or totally) unqualified conclusion while conclude is to end; to come to an end.

As a noun guess

is a prediction about the outcome of something, typically made without factual evidence or support.

In transitive terms the difference between open and slip

is that open is to start (a campaign) while slip is to cause to move smoothly and quickly; to slide; to convey gently or secretly.

In intransitive terms the difference between open and slip

is that open is to begin conducting business while slip is to move quickly and often secretively; to depart, withdraw, enter, appear, intrude, or escape as if by sliding.

In obsolete terms the difference between open and slip

is that open is to disclose; to reveal; to interpret; to explain while slip is a counterfeit piece of money, made from brass covered with silver.

As an adjective open

is which is not closed; accessible; unimpeded; as, an open gate.

As nouns the difference between open and release

is that open is while release is the event of setting (someone or something) free (eg hostages, slaves, prisoners, caged animals, hooked or stuck mechanisms).

As a verb release is

to let go (of); to cease to hold or contain or release can be to lease again; to grant a new lease of; to let back.

As nouns the difference between open and disengage

is that open is while disengage is (fencing) a circular movement of the blade that avoids the opponent's parry.

As a verb disengage is

(ambitransitive) to release or loosen from something that binds, holds, entangles, or interlocks; unfasten; detach; disentangle; free.

As a noun open

is .

As a verb unfurl is

to unroll or release something that had been rolled up, typically a sail or a flag.

As a noun open

is .

As a verb unclench is

to open (something that was clenched).

As verbs the difference between open and unlatch

is that open is to make something accessible or remove an obstacle to its being accessible while unlatch is remove from a latch.

As an adjective open

is which is not closed; accessible; unimpeded; as, an open gate.

As a noun open

is a sports event in which anybody can compete; as, the Australian Open.

In transitive terms the difference between open and unclasp

is that open is to start (a campaign) while unclasp is to release the clasp from something.

In intransitive terms the difference between open and unclasp

is that open is to begin conducting business while unclasp is to become unfastened.

As an adjective open

is which is not closed; accessible; unimpeded; as, an open gate.

As a noun open

is a sports event in which anybody can compete; as, the Australian Open.