aptitude

As a noun aptitude

is natural ability to acquire knowledge or skill.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As a noun aptitude

is natural ability to acquire knowledge or skill.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun aptitude

is natural ability to acquire knowledge or skill.

As an adjective undefined is

lacking a definition or value.

Aptitude is a related term of cheerfulness.

As nouns the difference between aptitude and cheerfulness

is that aptitude is natural ability to acquire knowledge or skill while cheerfulness is the state of being cheerful; joy.

Tact is a related term of aptitude.

As nouns the difference between tact and aptitude

is that tact is the sense of touch; feeling while aptitude is natural ability to acquire knowledge or skill.

As a verb tact

is (psychology) to use a tact (a kind of verbal operant; see noun sense).

As nouns the difference between aptitude and affinity

is that aptitude is natural ability to acquire knowledge or skill while affinity is a natural attraction or feeling of kinship to a person or thing.

As nouns the difference between aptitude and timing

is that aptitude is natural ability to acquire knowledge or skill while timing is (obsolete) an occurrence or event.

As a verb timing is

.

Science is a related term of aptitude.

As nouns the difference between science and aptitude

is that science is (countable) a particular discipline or branch of learning, especially one dealing with measurable or systematic principles rather than intuition or natural ability or science can be while aptitude is natural ability to acquire knowledge or skill.

As a verb science

is to cause to become versed in science; to make skilled; to instruct.

Aptitude is a related term of contrivance.

As nouns the difference between aptitude and contrivance

is that aptitude is natural ability to acquire knowledge or skill while contrivance is a (mechanical) device to perform a certain task.

Aptitude is a related term of duplicity.

As nouns the difference between aptitude and duplicity

is that aptitude is natural ability to acquire knowledge or skill while duplicity is intentional deceptiveness; double-dealing.