Ace of Swords – Love and Relationship Outcome
The Ace of Swords in a Tarot reading indicates victory in love as well as material matters, as far as questions are concerned it is either yes or no so now is the time to get a straight answer from someone bringing an end to any doubt. It also indicates the sowing of seeds including pregnancy.
In the reversed position it indicates that the relationship is hopeless, it has reached its cut off point and maybe it was somewhat foolish to get involved.
Ace of Swords – As a Person, Outcome and Feelings
Initiative, force, masculine activity, seed, germ, commencement in matter, decision, starting point, emphasis; fructification. Execution, affliction, pain, but annihilation of doubt and uncertainty. Courage, firmness, integrity. May denote great passion or intense enmity. Fury, vehemence. A. E. Thierens, 
Ace of Swords
Pictorial Key to the Tarot – Rider-Waite-Smith
By A.E. Waite (1911), tarot card illustrations by Pamela Colman Smith (1911)
A hand issues from a cloud, grasping a sword, the point of which is encircled by a crown.
Meanings Ace of Swords in a Reading
Triumph, the excessive degree in everything, conquest, triumph of force. It is a card of great force, in love as well as in hatred. The crown may carry a much higher significance than comes usually within the sphere of fortune-telling.
Ace of Swords – Reversed
The same, but the results are disastrous; another account says–conception, childbirth, augmentation, multiplicity.
Additional Divinatory Meanings
Great prosperity or great misery.
Additional Meanings – Reversed
Marriage broken off, for a woman, through her own imprudence.
By S. L. MacGregor Mathers, c 1888
Ace of Swords
Ace of Swords – Triumph, Fecundity, Fertility, Prosperity.
Divinatory Meanings – Reversed
Embarrassment, Foolish and Hopeless Love, Obstacle, Hindrance
General Book of the Tarot
By A. E. Thierens, 
Ace of Swords
The extreme or excessive, triumph, force. “It is a card of great force, in love as well as in hatred.” (Waite) Vehemence, fury, etc. Limits, extremity, frontier, confinement. Reversed: Conception, pregnancy, childbirth, fructification, production, enlarging, augmentation.
This is the first step of the element of Earth, coming on the First house or ascendant. Of course this has to do with a beginning, a strong outpouring of force, an impulse, and a material one too. Positive activity on the material plane is typically masculine, and this is a very masculine card, perhaps the most of all. There is no negotiation possible with it. It is emphatically ‘yes’ or ‘no.’ One of the primary expressions of the masculine is fructification, and the male action is indicated by this card. For the same reason it means germ, seed. And its natural consequence is conception and childbirth, the ace indicating here also the ascendant. In everything this card means the actual beginning in material execution, which at the same time may cut short something else. It may mean decapitation, or any justiciary execution. It signifies of course a decision, the end of uncertainty or twilight. It is a fresh starting point in matter: ‘alea jacta est.’ And so it may as well mean a strong demand, an appeal. There is courage in it and firm initiative. It may cause pain and affliction, but annihilates doubt, the greatest torture.
The Oracle of the Tarot – Exoteric Tarot
By Paul Foster Case (1933)
Ace of Swords
The ankh cross, similar to a Venus symbol, represents the union of positive and negative forces, and thus corresponds to VAU, the third letter of the Great Name, IHVH. The Swords are all symbols of AIR, which is alchemically the mixture of the hot and dry nature of FIRE with the cool and moist nature of WATER, but with the heat and dryness predominant over the cold and moisture. Thus AIR is more fiery than watery, and there is a closer affinity between Swords and Wands than between Swords and Cups. The Ace of Swords symbolizes Invoked Force, by way of contrast to the Natural Force typified by the Ace of Wands.
The root of the powers of air.
In the Knapp Tarot it is shown point downward, but this represents its evil and negative significance, for in ceremonial magic the sword in this position is used for the invocation of the evil and demonic forces. On ancient exoteric and esoteric versions of this Key the single sword often is shown with its point upward, and the point is surrounded by a radiant Crown, symbolizing the invocation of spiritual Radiance. Thus, in using this card, it is to be considered Ill-dignified if it appears with the point of the sword down, and Well-dignified if in the reverse position.
From Libra 0 to the end of Sagittarius, September 23rd to December 21st, representing the conjoined powers of Venus, Mars and Jupiter.
Activity, particularly mental force in operation.
More information on the Ace of Swords Tarot card.