High-Frequency Letter Combinations

Definition

High-frequency combinations are letter pairs (bigrams) and triples (trigrams) that appear often, such as TH, ST, CH, ING, and ENT. Recognising them speeds candidate generation.

Why it matters

Knowing which combinations are common lets you predict likely letter neighbours from partial clues.

Examples

• TH, CH, SH as common openers.
• -ING, -ENT, -ION as common endings.

Best practices

• Memorise frequent bigrams and trigrams.
• Use them to fill gaps between confirmed letters.

Frequently asked