The difference between Base and Basis

Base as a noun:

Something from which other things extend; a foundation. A supporting, lower or bottom component of a structure or object.

Base as a noun:

The starting point of a logical deduction or thought; basis.

Base as a noun:

A permanent structure for housing military personnel and material.

Base as a noun:

The place where decisions for an organization are made; headquarters.

Base as a noun (cooking, painting, pharmacy):

A basic but essential component or ingredient.

Base as a noun:

A substance used as a mordant in dyeing.

Base as a noun (cosmetics):

Foundation: a cosmetic cream to make the face appear uniform.

Base as a noun (chemistry):

Any of a class of generally water-soluble compounds, having bitter taste, that turn red litmus blue, and react with acids to form salts.

Base as a noun (baseball):

Important areas in games and sports. A safe zone in the children's games of tag and hide-and-go-seek. One of the three places that a runner can stand without being subject to being tagged out.

Base as a noun (architecture):

The lowermost part of a column, between the shaft and the pedestal or pavement.

Base as a noun (biology, biochemistry):

A nucleotide's nucleobase in the context of a DNA or RNA biopolymer.

Base as a noun (botany):

The end of a leaf, petal or similar organ where it is attached to its support.

Base as a noun (electronics):

The name of the controlling terminal of a bipolar transistor (BJT).

Base as a noun (geometry):

The lowest side of a in a triangle or other polygon, or the lowest face of a cone, pyramid or other polyhedron laid flat.

Base as a noun (heraldiccharge):

The lowest third of a shield or escutcheon.

Base as a noun (heraldry):

The lower part of the field. See .

Base as a noun (mathematics):

A number raised to the power of an exponent.

Base as a noun (mathematics):

.

Base as a noun (topology):

The set of sets from which a topology is generated.

Base as a noun (topology):

A topological space, looked at in relation to one of its covering spaces, fibrations, or bundles.

Base as a noun (acrobatics, cheerleading):

In hand-to-hand balance, the person who supports the flyer; the person that remains in contact with the ground.

Base as a noun (linguistics):

A morpheme (or morphemes) that serves as a basic foundation on which affixes can be attached.

Base as a noun (music):

Base as a noun (military, historical):

The smallest kind of cannon.

Base as a noun (archaic):

The housing of a horse.

Base as a noun (historical, in the plural):

A kind of skirt (often of velvet or brocade, but sometimes of mailed armour) which hung from the middle to about the knees, or lower.

Base as a noun (obsolete):

The lower part of a robe or petticoat.

Base as a noun (obsolete):

An apron.

Base as a noun:

A line in a survey which, being accurately determined in length and position, serves as the origin from which to compute the distances and positions of any points or objects connected with it by a system of triangles.

Base as a verb (transitive):

To give as its foundation or starting point; to lay the foundation of.

Base as a verb (transitive):

To be located (at a particular place).

Base as a verb (acrobatics, cheerleading):

To act as a base; to be the person supporting the flyer.

Base as an adjective (obsolete):

Low in height; short.

Base as an adjective:

Low in place or position.

Base as an adjective (obsolete):

Of low value or degree.

Base as an adjective (archaic):

Of low social standing or rank; vulgar, common.

Base as an adjective:

Morally reprehensible, immoral; cowardly.

Base as an adjective (now, rare):

Inferior; unworthy, of poor quality.

Base as an adjective:

Designating those metals which are not classed as or .

Base as an adjective:

Alloyed with inferior metal; debased.

Base as an adjective (obsolete):

Of illegitimate birth; bastard.

Base as an adjective:

Not classical or correct.

Base as an adjective:

Base as an adjective (legal):

Not held by honourable service.

Base as a noun (now, chiefly, US, historical):

The game of prisoners' bars.

Basis as a noun:

A physical base or foundation.

Basis as a noun:

A starting point, base or foundation for an argument or hypothesis.

Basis as a noun:

An underlying condition or circumstance.

Basis as a noun:

A regular frequency.

Basis as a noun (linear algebra):

In a vector space, a linearly independent set of vectors spanning the whole vector space.

Basis as a noun (accounting):

Amount paid for an investment, including commissions and other expenses.

Basis as a noun (topology):

A collection of subsets ("basis elements") of a set, such that this collection covers the set, and for any two basis elements which both contain an element of the set, there is a third basis element contained in the intersection of the first two, which also contains that element.