AGRESIVO (A), aggressive, combative, antagonistic
AGRESOR (A), aggressor, attacker, assailant
AGRESTE, wild, rough; uncouth person
AGRÍCOLA, agricultural, farming
AGRICULTOR (A), farmer
AGRICULTURA, agriculture, farming
AGRONOMÍA, agronomy
AGRÓNOMO (A), agronomist
AGRUPACIÓN, group, association, grouping
AGRUPAMIENTO, grouping
AGUA, water
AGUADO (A), watery, thin; watered down, weak
AGUAMARINA, aquamarine
AIRE, air
ALABASTRO, alabaster
ALARMA, alarm
ALARMANTE, alarming, frightening, terrifying, shocking
ALBATROS, albatross
ÁLCALI, alkali
ALCALINO, alkaline
ALCALOIDE, alkaloid
ALCOHÓLICO (A), alcoholic
ALCOHOLISMO, alcoholism
ALEGACIÓN, declaration, statement
ALEGORÍA, allegory; symbol; metaphor
ALEGÓRICO (A), allegorical, allegoric; figurative
ALERGIA, allergy
ALÉRGICO (A), allergic
ALERTA, alert, watchful; wary, cautious
ALFA, alpha
ALFABETO, alphabet
ALGEBRAICO (A), algebraic
ALIENACIÓN, alienation, distance, antagonize
ALIENÍGENA, alien
ALINEACIÓN, alignment; lineup (DEP)
ALITERACIÓN, alliteration
ALOCUCIÓN, address, speech, allocution
ALPINO (A), Alpine
ALTAMENTE (adv), highly
ALTERACIÓN, alteration, change; upset, disturbance
ALTERADO (A), upset
ALTERCADO, altercation, argument
ALTERNADOR, alternator
ALTERNANCIA, alternation, rotation
ALTERNATIVA, alternative, option, choice
ALTERNATIVAMENTE, alternatively
ALTERNATIVO (A), alternating; alternative
ALTITUD, altitude
ALTIVO (A), haughty, arrogant
ALTRUISMO, altruism, selflessness, unselfish
ALTRUISTA, altruistic, altruist
ALTURA, height, high, lofty, peak
ALUCINACIÓN, hallucination
ALUMINIO, aluminum
ALUMNADO, student body
ALUMNO (A), student, pupil
ALUSIÓN, allusion; reference, hint
ALUSIVO (A), allusive, passing, covert, indirect
AMABILIDAD, kindness, courtesy
AMABLE, kind, nice
AMABLEMENTE, kindly
AMALGAMA, amalgam, mixture, blend
AMATISTA, amethyst
ÁMBAR, amber
AMBICIÓN, ambition, drive, enterprise, initiative
AMBICIOSO (A), ambitious, zealous, energetic
AMBIDEXTRO (A), ambidextrous
AMBIENTAL, background, environmental
AMBIENTACIÓN, atmosphere, ambient; setting
AMBIENTE, surroundings
AMBIGUAMENTE, ambiguously
AMBIGÜEDAD, ambiguity
AMBIGUO (A), ambiguous, equivocal, vague
AMBIVALENTE, ambivalent
AMBULANCIA, ambulance
AMBULANTE, mobile
AMENO, pleasant, nice, agreeable, amenable
AMIGABLE, amicable, friendly, sociable
AMIGO (A), friend
AMISTAD, friendship
AMISTOSO (A), friendly, amiable, cordial, genial
AMNISTÍA, amnesty, pardon, reprieve, remission
AMONÍACO, ammonia
AMOROSO (A), amorous, loving, affectionate
AMORTIZACIÓN, amortization, redemption
AMPERIO, ampere
AMPLIABLE, expandable
AMPLIACIÓN, expansion, extension, enlargement
AMPLIFICACIÓN, amplification
AMPLITUD, roominess, spaciousness
AMPUTACIÓN, amputation
AMULETO, amulet
ANAGRAMA, anagram
ANALGÉSICO, analgesic
ANÁLISIS, analysis
ANALISTA, analyst
ANALÍTICO (A) (adj), analytical, analytic
ANALÓGICO (A), analogical
ANALOGÍA, analogy, similarity
ANÁLOGO (A), analogous, similar; analogue
ANATEMA, anathema; detested, rejected
ANATOMÍA, anatomy
ANATÓMICO (A), anatomical
ANCESTRO, ancestor, predecessor, precursor
ANCHOA, anchovy
ÁNCORA, anchor
ANDROIDE, android
ANÉCDOTA, anecdote, short story
ANECDÓTICO, anecdotal; trivial, superficial
ANÉMICO (A), anemic
ANEXIÓN, annexation
ANEXO (A), connected, attached, enclosed; enclosure
ANFIBIO (A), amphibious, amphibian
ÁNFORA, amphora
ANGLÓFILO (A), anglophile
ANGLÓFOBO (A), anglophobe
ÁNGULO, angle (MAT)
ANGULOSO (A), angular, sharp
ANIMACIÓN, liveliness, activity, animation
ANIMOSIDAD, animosity, ill will, antagonism, acrimony
ANIMOSO (A), spirited, lively
ANISETE, anisette
ANIVERSARIO, anniversary
ÁNODO, anode
ANOMALÍA, anomaly, irregularity, oddity
ANÓMALO