Challenge : Create a star shaped crosswords (Smaller numbers of distinct letters wins !)

Rules:

• Create a star-shaped crossword using 6 letters English words.
• Clues for the crossword is not needed.
• Use common English words.
• Direction for diagonals is TOP to DOWN.
• Direction for Horizontal is LEFT to RIGHT.

Example:

The words used in the example are : states, latent, steaks, strait and learns
There are 9 distinct letters used "aeiklnrst"

Challenge:

This is an open ended Challenge.
Find the crossword with smaller numbers of distinct letters used.
The fastest with the smaller numbers of distinct letters wins.

• If Deus does this, he'll probably do 'A reckless disregard for star-shaped crosswords'. – boboquack Apr 21 '17 at 10:21
• Now I'll be disappointed if this doesn't happen. – Rubio Apr 21 '17 at 15:13
• Since when did puzzle golfing become a thing...? – jpmc26 Apr 21 '17 at 19:07
• I've got a set of words with just three letters, but I don't think they'll fit into a star crossword: sestet, settee, tsetse, testes, testee (maybe also setees? alternate spelling of settees). – Duncan Apr 21 '17 at 21:25

Found an example using 4 distinct letters:

The letters used are: "eort"
The words used are: tooter, totter, rooter, retter and rotter

Seeing as RETTER isn't exactly a common word, another solution would be:

5 letters: "elort" with the words: tooter, totter, looter, letter and rotter
5 letters: "enort" with the words: tooner, totter, rooter, renter and rotter

• What is the fourth word in your list? – tmpearce Apr 21 '17 at 13:54
• @tmpearce RETTER: one that rets (you can check it out on: merriam-webster.com/dictionary/retter ) – practiced_liar Apr 21 '17 at 13:58
• I'm pretty sure that doesn't pass the third instruction (use common English words) – tmpearce Apr 21 '17 at 14:03
• I'm not sure if it's a common word but it's English, it appears in dictionaries (Merriam Webster and Oxford) and it's not denoted as "archaic" or "disused". – practiced_liar Apr 21 '17 at 14:12
• I like your 5 letter solutions! – tmpearce Apr 21 '17 at 14:30

Not sure if this is against the rules

but I think you can put terret everywhere. and you only use 3 letters

Let me know if this works. If not, I will delete it.

• You can do the same with words like "sasses" with the benefit of it being a more common english word – tmpearce Apr 21 '17 at 14:08
• @tmpearce. Do it. – Marius Apr 21 '17 at 14:44
• REDDER would also work. – Michael Seifert Apr 21 '17 at 18:21
• +1 Great answer, but what I mean is 5 distinct words. – Jamal Senjaya Apr 22 '17 at 2:15

I've managed to do it in 7 letters

Letters: AEHORST
Words: ASSETS, ASSERT, TASERS, THESES, TOSSES

• Diagonals need to go from top to bottom, so one of your words is backwards – tmpearce Apr 21 '17 at 13:53

Here's one with 7 letters

Using:

SPEEDS, STEEDS, SHEETS, STEELS, SLEETS - Letters are DEHLTSP