This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Consisting of interconnected or interwoven parts; composite.

adj. Composed of two or more units: a complex carbohydrate.

adj. Involved or intricate, as in structure; complicated.

adj. Grammar Consisting of at least one bound form. Used of a word.

adj. Grammar Consisting of an independent clause and at least one other independent or dependent clause. Used of a sentence.

n. A whole composed of interconnected or interwoven parts: a complex of cities and suburbs; the military-industrial complex.

n. In psychology, a group of related, often repressed ideas and impulses that compel characteristic or habitual patterns of thought, feelings, and behavior. No longer in scientific use.

n. An exaggerated or obsessive concern or fear.

n. Medicine The combination of factors, symptoms, or signs of a disease or disorder that forms a syndrome.

adj. Made up of multiple parts; intricate or detailed.

adj. Not simple or straightforward.

adj. Of a number, of the form a + bi, where a and b are real numbers and i is the square root of −1.

adj. A curve, polygon or other figure that crosses or intersects itself.

n. A problem.

n. A collection of buildings with a common purpose, such as a university or military base.

n. A psychologically based dislike or fear of a particular thing.

n. A thunderstorm that forms when two storm fronts collide.

n. A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.

v. To form a complex with another substance

adj. Composed of two or more parts; composite; not simple.

adj. Involving many parts; complicated; intricate.

n. Assemblage of related things; collection; complication.

Composed of interconnected parts; formed by a combination of simple things or elements; including two or more connected particulars; composite; not simple: as, a complex being; complex ideas; a complex term.

Involved; intricate; complicated; perplexing.

In the theory of numbers, any expression in the form ai + bj +, etc., where a, b, etc., are integers, and i, j, etc., are peculiar units.

n. Anything consisting in or formed by the union of interconnected parts; especially, an assemblage of particulars related as parts of a system.

n. In geometry, a continuous, triply infinite system of infinite straight lines; the whole of any kind of forms in space fulfilling one condition: thus, all the lines that cut a given curve in space constitute a complex.

To combine intricately; involve; mix up.

n. a conceptual whole made up of complicated and related parts

n. a compound described in terms of the central atom to which other atoms are bound or coordinated

n. a whole structure (as a building) made up of interconnected or related structures

adj. complicated in structure; consisting of interconnected parts

n. (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior

"78 Day 4 The variable z so defined has now a real and an imaginary part that can be individually addressed using, respectively, the syntax: __real__ z and __imag__ z Similarly, the next declaration produces a complex variable of 32-bit integer type: __complex__ int x;"

multifactorial    compound    interwoven    interlinking    decomposable    convoluted    complicated    analyzable    interlocking    colonial   

composite    complex number    complex truth    line-complex    axis of a complex    class of a complex    complex variable    pallial complex    complex sentence    -complex shear   

symplectic   

Oedipus complex    military-industrial complex    protein complex    vitamin B complex   

intricate    composite    complicated    collection    complication    complicate    detailed    involved    tough    difficult   

Czechs    Ex    Lex    Rex    Tex    Triplex    X    aix    annex    becks   

new    specific    difficult