The definition of an "adjustment" — any structural change to a live options position, and why it's not always defensive.

The definition of the "body" of an options spread — the short core leg or legs at the center of the structure.

The definition of credit in options spread trading — premium received at entry and the max profit reference for credit structures.

The definition of debit in options spread trading — premium paid at entry and the max loss reference for debit structures.

The definition of probability of touch — the chance an underlying touches a strike before expiration, and how it differs from probability of being ITM at expiration.

The definition of risk-defined in options strategy — a position whose maximum loss is fixed at entry, regardless of move.

The definition of "rolling" an options position — closing one structure and opening another, and the cost it adds.

The definition of volatility skew in 0DTE options — why puts and calls don't always carry the same implied volatility.

The definition of a trade plan in 0DTE strategy — the written, pre-trade document that turns an idea into a disciplined execution.

The definition of "wings" on an options spread — the long protective legs and what they cost the structure.