Are we seeing a conjunction these mornings? I have a doubt about planetary conjunction.

These days, we can see Saturn, Mars, Jupiter and the Moon close to each other.

I mean if Saturn, Mars, Jupiter and the Moon were in conjunction with each other, last February, 19th, 2020.

Is this a conjunction or is it an alignment?
Strictly speaking, a
conjunction
is when two objects appear at the same
right ascension or  ecliptic longitude.
These are not exactly the same but are usually close since the major planets remain near the ecliptic.

When Venus or Mercury is in conjunction with the Sun, we distinguish between inferior (near side) and superior (far side) conjunction.
The outer planets can have another type of alignment, opposition, in which they are 180&deg; away from the Sun around the equator or ecliptic.

When two solar system objects appear only a few degrees apart, it's fair to say they are near conjunction.
If they don't quite reach conjunction, their minimum angular separation is called an appulse.

Mars is in conjunction with Jupiter on March 20 and with Saturn on March 31.
Other planet-planet conjunctions are listed here.
On 2020-12-21 Jupiter and Saturn will appear only 0.1&deg; apart at conjunction and should be interesting to see together in a telescope shortly after sunset.