7-letter words with S as the 2nd letter and T as the 4th letter

Only 15 tournament-dictionary words match this exact seven-letter pattern, so each placement matters. ISOTOPE and ASHTRAY are familiar anchors; the set also includes ISOTOPY, ISOTACH, and TSKTSKS. This narrow pool suits a fixed board pattern, but most entries are uncommon, so spelling alone does not guarantee a playable word.

At a glance: S in position two, T in position four

• The pattern has 15 matches: 15 in Collins, 13 in NWL2023, and 10 in ENABLE.
• Eight begin with I and four with T; the other three start with A, E, or O.
• Final E and final S each appear five times; Y closes three words.
• TSKTSKS scores 15 points, ahead of ASHTRAY at 13.
• Only one match ranks among common English words.

Which 7-letter words have S second and T fourth?

The 15 matches split sharply by opening letter: eight start with I, four with T, and three with A, E, or O. ISOTOPE and ASHTRAY are the clearest familiar anchors, while the small A, E, and O groups each have just one entry.

Five words finish in E and five in S; three finish in Y, while H and N each close one word. The “isot-” group includes ISOTYPE, ISOTOPY, ISOTRON, ISOTACH, and ISOTOPE.

How should you use this pattern in a word game?

Only one of these 15 entries is common, and 14 have definitions; many are specialist vocabulary. Treat the fixed letters as a filter, then check your game's word list before playing an unfamiliar spelling.

TSKTSKS leads at 15 points; ASHTRAY scores 13, while ISOTYPE, ISOTOPY, and ISOTACH each score 12. These are base word scores, so a premium square can change the board result. The repeated high-value letters explain TSKTSKS's lead despite its unusual spelling.